CVE-2025-3516 json
Simple Lightbox < 2.9.4 - Contributor+ Stored XSS
published last yr. modified 4mo ago also EUVD-2025-15412
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
The Simple Lightbox WordPress plugin before 2.9.4 does not validate and escape some of its attributes before outputting them back in a page/post, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
Patch / fix
- Unknown Simple Lightbox 2.9.4
Is CVE-2025-3516 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
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/336a78cd-297b-4f47-a007-e33eac7f1dad/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L |
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L |
Affected products
- Unknown Simple Lightbox
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/336a78cd-297b-4f47-a007-e33eac7f1dad/
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2025-3516
- NVD CVE-2025-3516
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.