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Vulnerability details: VCID-2w7m-mb7e-tqe6
Vulnerability ID VCID-2w7m-mb7e-tqe6
Aliases CVE-2025-29790
GHSA-vqqr-fgmh-f626
Summary Contao Vulnerable to Cross-Site Scripting (XSS) through SVG uploads Users can upload SVG files with malicious code, which is then executed in the back end and/or front end.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00533 https://api.first.org/data/v1/epss?cve=CVE-2025-29790
cvssv4 4.8 https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
generic_textual MODERATE https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
ssvc Track https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
cvssv4 4.8 https://github.com/contao/contao
generic_textual MODERATE https://github.com/contao/contao
cvssv4 4.8 https://github.com/contao/contao/security/advisories/GHSA-vqqr-fgmh-f626
generic_textual MODERATE https://github.com/contao/contao/security/advisories/GHSA-vqqr-fgmh-f626
ssvc Track https://github.com/contao/contao/security/advisories/GHSA-vqqr-fgmh-f626
cvssv4 4.8 https://nvd.nist.gov/vuln/detail/CVE-2025-29790
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2025-29790
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2025-29790
https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
https://github.com/contao/contao
CVE-2025-29790 https://nvd.nist.gov/vuln/detail/CVE-2025-29790
GHSA-vqqr-fgmh-f626 https://github.com/advisories/GHSA-vqqr-fgmh-f626
GHSA-vqqr-fgmh-f626 https://github.com/contao/contao/security/advisories/GHSA-vqqr-fgmh-f626
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N Found at https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-18T18:48:29Z/ Found at https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N Found at https://github.com/contao/contao
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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physical

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N Found at https://github.com/contao/contao/security/advisories/GHSA-vqqr-fgmh-f626
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

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passive

active

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-18T18:48:29Z/ Found at https://github.com/contao/contao/security/advisories/GHSA-vqqr-fgmh-f626
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2025-29790
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

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Exploit Prediction Scoring System (EPSS)
Percentile 0.67772
EPSS Score 0.00533
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:23:31.756181+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/contao/core-bundle/CVE-2025-29790.yml 38.6.0