TI-2026-76250 Aliases CVE-2026-74922 GHSA-wpx6-cwp7-w9hm

Document Gallery plugin flaw lets anyone replace document thumbnails

LOW 29CWE-345Published 2026-10-19 · Updated 2026-10-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-345.

Summary

The Document Gallery WordPress plugin from 4.1 through 5.1.1 does not verify the signature on one of its unauthenticated webhook endpoints (CWE-345) when no shared secret is configured, which is the default. An unauthenticated remote attacker can replace the thumbnail image the site publishes for any document. A public exploit is linked in the references.

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 verify the signature on one of its unauthenticated webhook endpoints when no shared secret has been configured, which is the default state, allowing unauthenticated users to replace the thumbnail image the site publishes for any document.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00117 1st 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: Yes
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Document Gallery	4.1 – 5.1.1	—	No fix listed	CNA

Document Gallery VendorUnknown Affected 4.1 – 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

2026-10-19 Threatist record created from CVE-2026-74922
2026-10-19 Weakness changed · CISA ADP
2026-10-19 CISA SSVC decision points changed
2026-10-19 Alias added: GHSA-wpx6-cwp7-w9hm

References

Exploit 1

https://wpscan.com/vulnerability/850aaa4e-82ff-479f-bdcd-6cb8089325bd/

Sources

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