# CVE-2025-11877: User Activity Log <= 2.2 - Unauthenticated Limited Options Update via Failed Login

> Unauthenticated attackers can modify site options via failed login attempts, potentially reopening registration or breaking admin access.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Jan 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-69mj-pc6r-5cgv

## What is CVE-2025-11877?

CVE-2025-11877 is a high-severity missing authorization vulnerability in solwininfotech User Activity Log, published on 7 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The User Activity Log plugin is vulnerable to a limited options update in versions up to, and including, 2.2. The failed-login handler 'ual_shook_wp_login_failed' lacks a capability check and writes failed usernames directly into update_option() calls. This makes it possible for unauthenticated attackers to push select site options from 0 to a non-zero value, allowing them to reopen registration or corrupt options like 'wp_user_roles', breaking wp-admin access. CVE-2025-13471 appears to be a duplicate of this CVE.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2025-11877?


## How do I fix CVE-2025-11877?

No fix has been published for CVE-2025-11877 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-11877 being exploited?

There is no known exploitation of CVE-2025-11877 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-11877 and fix it if it is affected.

What it is: CVE-2025-11877 is a high-severity missing authorization vulnerability in solwininfotech User Activity Log, published on 7 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-11877 in the wild and no public exploit code.

Affected product: solwininfotech User Activity Log. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-11877/ (Markdown: https://insights.sbomify.com/CVE-2025-11877/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-11877
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-11877
- OSV: https://osv.dev/vulnerability/CVE-2025-11877

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-11877/
Summaries are generated and may contain mistakes; the official description above is the record.