CVE-2025-4955 json
tarteaucitron.io < 1.9.5 - Contributor+ Stored XSS
published last yr. modified 4mo ago also EUVD-2025-18664
- cvss
- 4.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
The tarteaucitron.io WordPress plugin before 1.9.5 uses query parameters from YouTube oEmbed URLs without sanitizing these parameters correctly, which could allow users with the contributor role and above to perform Stored Cross-site Scripting attacks.
Patch / fix
- Unknown tarteaucitron.io 1.9.5
Is CVE-2025-4955 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/b84a73a4-7e9b-4994-a9bb-ad47f7cf45da/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
Affected products
- Unknown tarteaucitron.io
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/b84a73a4-7e9b-4994-a9bb-ad47f7cf45da/
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2025-4955
- NVD CVE-2025-4955
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.