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Vulnerability details: VCID-ubr4-jj9v-3kcx
Vulnerability ID VCID-ubr4-jj9v-3kcx
Aliases CVE-2025-29790
GHSA-vqqr-fgmh-f626
Summary Contao is an Open Source CMS. Users can upload SVG files with malicious code, which is then executed in the back end and/or front end. This vulnerability is fixed in Contao 4.13.54, 5.3.30, or 5.5.6.
Status Published
Exploitability None
Weighted Severity None
Risk None
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://github.com/contao/contao
https://nvd.nist.gov/vuln/detail/CVE-2025-29790
cross-site-scripting-through-svg-uploads https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
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)

network

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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

local

physical

low

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present

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passive

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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

high

none

passive

active

high

low

none

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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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low

none

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low

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none
Exploit Prediction Scoring System (EPSS)
Percentile 0.67826
EPSS Score 0.00533
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T17:07:46.434508+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2025/29xxx/CVE-2025-29790.json 38.6.0