TI-2026-78801 Aliases CVE-2026-111837 GHSA-gwfv-3fg6-68gx

Stored cross-site scripting in WordPress Contest Gallery plugin

LOW 28CWE-79Published 2026-10-21 · Updated 2026-10-21

Key facts

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

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

Summary

The Contest Gallery plugin by Wasiliy Strecker, in versions through 34.0.1, does not neutralize input during web page generation. This is a stored cross-site scripting flaw (CWE-79). An attacker with low privileges can store script that runs in another user's browser when that user interacts with the page.

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

Description from the CNA

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Wasiliy Strecker Contest Gallery contest-gallery allows Stored XSS.This issue affects Contest Gallery: from n/a through 34.0.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0018 7th percentileScored 2026-11-07

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: 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
Wasiliy Strecker	Contest Gallery	up to 34.0.1	—	No fix listed	CNA

Contest Gallery VendorWasiliy Strecker Affected up to 34.0.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Contest Gallery.

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

Timeline

2026-10-21 Threatist record created from CVE-2026-111837
2026-10-21 Alias added: GHSA-gwfv-3fg6-68gx
2026-10-21 CISA SSVC decision points changed
2026-10-21 Priority changed: MEDIUM → LOW

References

Other 1

https://patchstack.com/database/wordpress/plugin/contest-gallery/vulnerability/wordpress-contest-gallery-plugin-34-0-1-cross-site-scripting-xss-vulnerability?_s_id=cve

TI-2026-29440 WordPress Contest Gallery plugin <= 28.1.6 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
TI-2026-41487 WordPress Contest Gallery plugin <= 30.0.0 - SQL Injection vulnerability CVSS 3.1HIGH 8.5
TI-2026-30916 WordPress Contest Gallery plugin <= 28.1.7 - Other Vulnerability Type vulnerability CVSS 3.1MEDIUM 6.5
TI-2026-44358 WordPress Contest Gallery plugin <= 30.0.5 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
TI-2026-30919 WordPress Contest Gallery plugin <= 28.1.7 - Sensitive Data Exposure vulnerability CVSS 3.1MEDIUM 6.5
TI-2026-30915 WordPress Contest Gallery plugin <= 28.1.6 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5

Sources

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