CVE-2026-74921 json
Document Gallery 4.0 - 5.1.1 - Contributor+ Stored XSS via Gallery Shortcode Attributes
published 23d ago modified 23d ago also EUVD-2026-104098
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
The Document Gallery WordPress plugin through 5.1.1 does not sanitise or escape several gallery shortcode attributes before embedding them in a single-quoted HTML attribute in the rendered gallery markup, allowing users with the Contributor role and above to inject arbitrary event handlers that execute when a higher privileged user views the content.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 23d ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/b0b97661-c671-420c-8fca-22666862b379/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Unknown Document Gallery
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/b0b97661-c671-420c-8fca-22666862b379/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-74921
- NVD CVE-2026-74921
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.