Django REST framework

Vulnerability Instance

Lookup for vulnerabilities affecting packages.

Vulnerability_idVCID-82d1-8yn8-sydv
Summary
Cross site scripting via HTML attributes in the back end
It is possible for untrusted users to inject malicious code into HTML attributes in the back end, which will be executed both in the element preview (back end) and on the website (front end).

Installations are only affected if there are untrusted back end users who have the rights to modify HTML fields (e.g. TinyMCE).
Aliases
0
alias CVE-2021-35955
1
alias GHSA-hr3h-x6gq-rqcp
Fixed_packages
0
url pkg:composer/contao/contao@4.4.56
purl pkg:composer/contao/contao@4.4.56
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.4.56
1
url pkg:composer/contao/contao@4.9.18
purl pkg:composer/contao/contao@4.9.18
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.9.18
2
url pkg:composer/contao/contao@4.11.7
purl pkg:composer/contao/contao@4.11.7
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.11.7
3
url pkg:composer/contao/core-bundle@4.4.56
purl pkg:composer/contao/core-bundle@4.4.56
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-rj3d-jeyz-vye5
1
vulnerability VCID-t2u3-tgg3-cbb9
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.4.56
4
url pkg:composer/contao/core-bundle@4.9.18
purl pkg:composer/contao/core-bundle@4.9.18
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-rj3d-jeyz-vye5
1
vulnerability VCID-t2u3-tgg3-cbb9
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.9.18
5
url pkg:composer/contao/core-bundle@4.11.7
purl pkg:composer/contao/core-bundle@4.11.7
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-rj3d-jeyz-vye5
1
vulnerability VCID-t2u3-tgg3-cbb9
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.11.7
Affected_packages
0
url pkg:composer/contao/contao@4.0.0
purl pkg:composer/contao/contao@4.0.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-5kwa-7kx3-kfga
1
vulnerability VCID-82d1-8yn8-sydv
2
vulnerability VCID-98fv-kpqs-mybc
3
vulnerability VCID-ah8s-8q49-8qbw
4
vulnerability VCID-crsc-bhc9-y3f9
5
vulnerability VCID-epmj-qf23-xffd
6
vulnerability VCID-rj3d-jeyz-vye5
7
vulnerability VCID-t2u3-tgg3-cbb9
8
vulnerability VCID-u6sk-25yd-e7b2
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.0.0
1
url pkg:composer/contao/contao@4.5.0
purl pkg:composer/contao/contao@4.5.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-5kwa-7kx3-kfga
1
vulnerability VCID-82d1-8yn8-sydv
2
vulnerability VCID-98fv-kpqs-mybc
3
vulnerability VCID-ah8s-8q49-8qbw
4
vulnerability VCID-epmj-qf23-xffd
5
vulnerability VCID-rj3d-jeyz-vye5
6
vulnerability VCID-t2u3-tgg3-cbb9
7
vulnerability VCID-u6sk-25yd-e7b2
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.5.0
2
url pkg:composer/contao/contao@4.10.0
purl pkg:composer/contao/contao@4.10.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-82d1-8yn8-sydv
1
vulnerability VCID-rj3d-jeyz-vye5
2
vulnerability VCID-t2u3-tgg3-cbb9
3
vulnerability VCID-u6sk-25yd-e7b2
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.10.0
3
url pkg:composer/contao/core-bundle@4.0.0
purl pkg:composer/contao/core-bundle@4.0.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-2w7m-mb7e-tqe6
1
vulnerability VCID-5kwa-7kx3-kfga
2
vulnerability VCID-6um8-6hqz-uybm
3
vulnerability VCID-82d1-8yn8-sydv
4
vulnerability VCID-98fv-kpqs-mybc
5
vulnerability VCID-ah8s-8q49-8qbw
6
vulnerability VCID-crsc-bhc9-y3f9
7
vulnerability VCID-epmj-qf23-xffd
8
vulnerability VCID-f8ny-db5g-pkhw
9
vulnerability VCID-jbcs-b2p9-myhz
10
vulnerability VCID-jzx2-et8q-7qhm
11
vulnerability VCID-nepv-9985-37g4
12
vulnerability VCID-r1h5-ag74-dbaw
13
vulnerability VCID-rj3d-jeyz-vye5
14
vulnerability VCID-t2u3-tgg3-cbb9
15
vulnerability VCID-u6sk-25yd-e7b2
16
vulnerability VCID-wyd5-t8at-8bba
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.0.0
4
url pkg:composer/contao/core-bundle@4.5.0
purl pkg:composer/contao/core-bundle@4.5.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-3fux-z15d-13g1
1
vulnerability VCID-5kwa-7kx3-kfga
2
vulnerability VCID-82d1-8yn8-sydv
3
vulnerability VCID-98fv-kpqs-mybc
4
vulnerability VCID-ah8s-8q49-8qbw
5
vulnerability VCID-azpb-eq6c-e7bw
6
vulnerability VCID-epmj-qf23-xffd
7
vulnerability VCID-rj3d-jeyz-vye5
8
vulnerability VCID-t2u3-tgg3-cbb9
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.5.0
5
url pkg:composer/contao/core-bundle@4.10.0
purl pkg:composer/contao/core-bundle@4.10.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-82d1-8yn8-sydv
1
vulnerability VCID-azpb-eq6c-e7bw
2
vulnerability VCID-mt93-hcnp-13ah
3
vulnerability VCID-nepv-9985-37g4
4
vulnerability VCID-rj3d-jeyz-vye5
5
vulnerability VCID-t2u3-tgg3-cbb9
6
vulnerability VCID-u6sk-25yd-e7b2
resource_url http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.10.0
References
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-35955
reference_id
reference_type
scores
0
value 0.00364
scoring_system epss
scoring_elements 0.58724
published_at 2026-06-04T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-35955
1
reference_url https://contao.org/en/news/contao-4-9-16-and-4-11-5-are-available.html
reference_id
reference_type
scores
0
value 5.9
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://contao.org/en/news/contao-4-9-16-and-4-11-5-are-available.html
2
reference_url https://contao.org/en/security-advisories/cross-site-scripting-via-html-attributes-in-the-back-end.html
reference_id
reference_type
scores
0
value 5.9
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://contao.org/en/security-advisories/cross-site-scripting-via-html-attributes-in-the-back-end.html
3
reference_url https://github.com/contao/contao
reference_id
reference_type
scores
0
value 5.9
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/contao/contao
4
reference_url https://nvd.nist.gov/vuln/detail/CVE-2021-35955
reference_id CVE-2021-35955
reference_type
scores
0
value 5.9
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2021-35955
5
reference_url https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2021-35955.yaml
reference_id CVE-2021-35955.YAML
reference_type
scores
0
value 5.9
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2021-35955.yaml
6
reference_url https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2021-35955.yaml
reference_id CVE-2021-35955.YAML
reference_type
scores
0
value 5.9
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2021-35955.yaml
7
reference_url https://github.com/advisories/GHSA-hr3h-x6gq-rqcp
reference_id GHSA-hr3h-x6gq-rqcp
reference_type
scores
url https://github.com/advisories/GHSA-hr3h-x6gq-rqcp
8
reference_url https://github.com/contao/contao/security/advisories/GHSA-hr3h-x6gq-rqcp
reference_id GHSA-hr3h-x6gq-rqcp
reference_type
scores
0
value 5.9
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/contao/contao/security/advisories/GHSA-hr3h-x6gq-rqcp
Weaknesses
0
cwe_id 79
name Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
description The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
1
cwe_id 937
name OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
description Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013.
2
cwe_id 1035
name OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
description Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017.
Exploits
Severity_range_score4.0 - 6.9
Exploitability0.5
Weighted_severity6.2
Risk_score3.1
Resource_urlhttp://public2.vulnerablecode.io/vulnerabilities/VCID-82d1-8yn8-sydv