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TI-2026-76249 Aliases CVE-2026-74921GHSA-5xmq-vg89-7x44

Stored cross-site scripting in Document Gallery WordPress plugin

Priority LOW 31CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Document Gallery WordPress plugin, versions 4.0 through 5.1.1, does not sanitise or escape several gallery shortcode attributes before placing them in a single-quoted HTML attribute of the rendered gallery markup. A user with the Contributor role or higher can inject event handlers that run when a higher-privileged user views the content. The CVE is scored 6.8 (MEDIUM) under CVSS 3.1 and classified as CWE-79. CISA has not added it to KEV, its SSVC data lists exploitation as none and not automatable with total technical impact, and the references include an exploit link.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00229 13th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownDocument Gallery4.0 – 5.1.1—No fix listedCNA
  • Document Gallery VendorUnknown Affected 4.0 – 5.1.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Document Gallery.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-19 Threatist record created from CVE-2026-74921
  2. 2026-10-19 Weakness changed · CISA ADP
  3. 2026-10-19 CISA SSVC decision points changed
  4. 2026-10-19 Priority changed: MEDIUM → LOW
  5. 2026-10-19 Alias added: GHSA-5xmq-vg89-7x44

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences