Lookup for vulnerable packages by Package URL.

Purlpkg:npm/ckeditor5@19.0.0
Typenpm
Namespace
Nameckeditor5
Version19.0.0
Qualifiers
Subpath
Is_vulnerabletrue
Next_non_vulnerable_version47.6.0
Latest_non_vulnerable_version47.6.0
Affected_by_vulnerabilities
0
url VCID-6q1k-xwcb-53hm
vulnerability_id VCID-6q1k-xwcb-53hm
summary
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CKSource CKEditor5 35.4.0 was discovered to contain a cross-site scripting (XSS) vulnerability via the Full Featured CKEditor5 widget.
references
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2022-48110
reference_id
reference_type
scores
0
value 0.01266
scoring_system epss
scoring_elements 0.79487
published_at 2026-04-18T12:55:00Z
1
value 0.01266
scoring_system epss
scoring_elements 0.79523
published_at 2026-04-24T12:55:00Z
2
value 0.01266
scoring_system epss
scoring_elements 0.79492
published_at 2026-04-21T12:55:00Z
3
value 0.01266
scoring_system epss
scoring_elements 0.7949
published_at 2026-04-16T12:55:00Z
4
value 0.01266
scoring_system epss
scoring_elements 0.79459
published_at 2026-04-13T12:55:00Z
5
value 0.01266
scoring_system epss
scoring_elements 0.7947
published_at 2026-04-12T12:55:00Z
6
value 0.01266
scoring_system epss
scoring_elements 0.79428
published_at 2026-04-07T12:55:00Z
7
value 0.01266
scoring_system epss
scoring_elements 0.79456
published_at 2026-04-08T12:55:00Z
8
value 0.01266
scoring_system epss
scoring_elements 0.79465
published_at 2026-04-09T12:55:00Z
9
value 0.0296
scoring_system epss
scoring_elements 0.86427
published_at 2026-04-02T12:55:00Z
10
value 0.0296
scoring_system epss
scoring_elements 0.86446
published_at 2026-04-04T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2022-48110
1
reference_url https://ckeditor.com/docs/ckeditor5/latest/features/html-embed.html
reference_id
reference_type
scores
0
value 6.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-24T12:58:12Z/
url https://ckeditor.com/docs/ckeditor5/latest/features/html-embed.html
2
reference_url https://github.com/ckeditor/ckeditor5
reference_id
reference_type
scores
0
value 6.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/ckeditor/ckeditor5
3
reference_url https://packetstormsecurity.com/files/170927/CKSource-CKEditor5-35.4.0-Cross-Site-Scripting.html
reference_id
reference_type
scores
0
value 6.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-24T12:58:12Z/
url https://packetstormsecurity.com/files/170927/CKSource-CKEditor5-35.4.0-Cross-Site-Scripting.html
4
reference_url https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/51260.txt
reference_id CVE-2022-48110
reference_type exploit
scores
url https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/51260.txt
5
reference_url https://nvd.nist.gov/vuln/detail/CVE-2022-48110
reference_id CVE-2022-48110
reference_type
scores
0
value 6.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2022-48110
6
reference_url https://github.com/advisories/GHSA-6p89-3p7c-qrhv
reference_id GHSA-6p89-3p7c-qrhv
reference_type
scores
0
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-6p89-3p7c-qrhv
fixed_packages
0
url pkg:npm/ckeditor5@36.0.0
purl pkg:npm/ckeditor5@36.0.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-dc1k-hva1-pkbs
resource_url http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor5@36.0.0
aliases CVE-2022-48110, GHSA-6p89-3p7c-qrhv
risk_score 10.0
exploitability 2.0
weighted_severity 6.2
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-6q1k-xwcb-53hm
1
url VCID-r4vp-zkkv-jfex
vulnerability_id VCID-r4vp-zkkv-jfex
summary
CKEditor 5 Markdown plugin Regular expression Denial of Service
### Impact
A regular expression denial of service (ReDoS) vulnerability has been discovered in the CKEditor 5 Markdown plugin code. The vulnerability allowed to abuse a link recognition regular expression, which could cause a significant performance drop resulting in a browser tab freeze. It affects all users using the CKEditor 5 Markdown plugin at version <= 24.0.0. 

### Patches
The problem has been recognized and patched. The fix will be available in version 25.0.0.

### Workarounds
The user can work around the issue by:
- Upgrading CKEditor 5 to version 25.0.0.
- Disabling the Markdown plugin.

### More information
If you have any questions or comments about this advisory:
* Email us at [security@cksource.com](mailto:security@cksource.com)

### Acknowledgements
The CKEditor 5 team would like to thank Erik Krogh Kristensen from the GitHub team for recognizing this vulnerability and 
Alvaro Muñoz from GitHub for reporting it.
references
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-21254
reference_id
reference_type
scores
0
value 0.00405
scoring_system epss
scoring_elements 0.60988
published_at 2026-04-02T12:55:00Z
1
value 0.00405
scoring_system epss
scoring_elements 0.6105
published_at 2026-04-24T12:55:00Z
2
value 0.00405
scoring_system epss
scoring_elements 0.61063
published_at 2026-04-21T12:55:00Z
3
value 0.00405
scoring_system epss
scoring_elements 0.6108
published_at 2026-04-18T12:55:00Z
4
value 0.00405
scoring_system epss
scoring_elements 0.61074
published_at 2026-04-16T12:55:00Z
5
value 0.00405
scoring_system epss
scoring_elements 0.61033
published_at 2026-04-13T12:55:00Z
6
value 0.00405
scoring_system epss
scoring_elements 0.61053
published_at 2026-04-12T12:55:00Z
7
value 0.00405
scoring_system epss
scoring_elements 0.61067
published_at 2026-04-11T12:55:00Z
8
value 0.00405
scoring_system epss
scoring_elements 0.61046
published_at 2026-04-09T12:55:00Z
9
value 0.00405
scoring_system epss
scoring_elements 0.6103
published_at 2026-04-08T12:55:00Z
10
value 0.00405
scoring_system epss
scoring_elements 0.60911
published_at 2026-04-01T12:55:00Z
11
value 0.00405
scoring_system epss
scoring_elements 0.60982
published_at 2026-04-07T12:55:00Z
12
value 0.00405
scoring_system epss
scoring_elements 0.61017
published_at 2026-04-04T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-21254
1
reference_url https://github.com/ckeditor/ckeditor5
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/ckeditor/ckeditor5
2
reference_url https://github.com/ckeditor/ckeditor5/releases/tag/v25.0.0
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/ckeditor/ckeditor5/releases/tag/v25.0.0
3
reference_url https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-hgmg-hhc8-g5wr
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
2
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-hgmg-hhc8-g5wr
4
reference_url https://nvd.nist.gov/vuln/detail/CVE-2021-21254
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2021-21254
5
reference_url https://www.npmjs.com/package/@ckeditor/ckeditor5-markdown-gfm
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://www.npmjs.com/package/@ckeditor/ckeditor5-markdown-gfm
6
reference_url https://github.com/advisories/GHSA-hgmg-hhc8-g5wr
reference_id GHSA-hgmg-hhc8-g5wr
reference_type
scores
0
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-hgmg-hhc8-g5wr
fixed_packages
0
url pkg:npm/ckeditor5@25.0.0
purl pkg:npm/ckeditor5@25.0.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-6q1k-xwcb-53hm
resource_url http://public2.vulnerablecode.io/packages/pkg:npm/ckeditor5@25.0.0
aliases CVE-2021-21254, GHSA-hgmg-hhc8-g5wr
risk_score 3.1
exploitability 0.5
weighted_severity 6.2
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-r4vp-zkkv-jfex
Fixing_vulnerabilities
Risk_score10.0
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:npm/ckeditor5@19.0.0