Stored cross-site scripting in WP Activity Log WordPress plugin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- 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 WP Activity Log plugin for WordPress is affected in all versions up to and including 5.6.1. Insufficient input sanitization and output escaping (CWE-79) let an unauthenticated attacker store arbitrary web scripts in pages. The scripts run whenever a user accesses an injected page.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Description from the CNA
The WP Activity Log plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.6.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
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
Remediation
The sources list no fixed version for WP Activity Log.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Timeline
- 2026-10-31 Threatist record created from CVE-2026-120075
- 2026-10-31 Alias added: GHSA-2c56-765v-m493
- 2026-11-01 Priority changed: MEDIUM → LOW
- 2026-11-01 CISA SSVC decision points changed
References
More Melapress vulnerabilities
- TI-2023-27808 WordPress WP Activity Log Plugin <= 4.6.1 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
- TI-2024-09166 Website File Changes < 2.1.1 - Authenticated SQL Injection CVSS 3.1MEDIUM 5.4
- TI-2024-09289 Website File Changes < 2.1.0 - Admin+ Authenticated SQL Injection CVSS 3.1MEDIUM 4.1
- TI-2026-39609 WordPress WP Activity Log plugin <= 5.6.3.1 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2025-06268 Authentication bypass in Melapress Login Security CVSS 3.1CRITICAL 9.8
- TI-2025-02511 Missing authorization in MelaPress Login Security Premium CVSS 3.1HIGH 8.2
Sources
- CVE-2026-120075 · CVE Program
- CVE-2026-120075 · NVD
- FIRST EPSS
- GHSA-2c56-765v-m493 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences