TI-2026-73854 Aliases CVE-2026-107757 GHSA-cq73-4rhf-ggqc

Stored cross-site scripting in Gallery Custom Links WordPress plugin

LOW 22CWE-79Published 2026-10-14 · Updated 2026-10-14

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

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

Summary

The Gallery Custom Links plugin for WordPress is vulnerable in all versions up to and including 2.3.3. Insufficient input sanitization and output escaping let injected script content persist and render on pages (CWE-79). An authenticated attacker with subscriber-level access or higher can inject arbitrary web scripts that execute whenever a user accesses an injected page.

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

Description from the CNA

The Gallery Custom Links plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'display_name (profile.php) + comment (wp-comments-post.php)' parameter in all versions up to, and including, 2.3.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit requires two coordinated inputs from the same authenticated attacker: an HTML comment payload stored in a comment body (preserved verbatim by WordPress comment kses) and a matching simple_html_dom noise key placed in the attacker's display_name (which survives esc_attr() intact), with substitution occurring after both filters have run during the plugin's default-on output-buffering pass over the full rendered page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00235 14th 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
tigroumeow	Gallery Custom Links	up to 2.3.3	—	No fix listed	CNA

Gallery Custom Links Vendortigroumeow Affected up to 2.3.3 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Gallery Custom Links.

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

Timeline

2026-10-14 Threatist record created from CVE-2026-107757
2026-10-14 Alias added: GHSA-cq73-4rhf-ggqc
2026-10-14 CISA SSVC decision points changed

References

Other 8

TI-2025-10772 AI Engine <= 3.1.3 - Unauthenticated Sensitive Information Exposure to Privilege Escalation CVSS 3.1CRITICAL 9.8
TI-2023-28063 WordPress AI Engine plugin <= 1.9.98 - Unauthenticated Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 10.0
TI-2024-09725 AI-Engine < 2.6.5 - Admin+ SQLi CVSS 3.1HIGH 7.2
TI-2024-05988 AI Engine < 2.5.1 - Admin+ RCE CVSS 3.1HIGH 7.2
TI-2024-19264 WordPress AI Engine plugin <= 2.1.4 - Server Side Request Forgery (SSRF) vulnerability CVSS 3.1MEDIUM 6.8
TI-2024-06230 AI Engine < 2.4.8 - Admin+ SQLi CVSS 3.1MEDIUM 4.7

See all 57 →

Sources

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