# CVE-2023-0926: Custom Permalinks <= 2.6.0 - Authenticated(Editor+) Stored Cross-Site Scripting

> Authenticated editors can inject arbitrary scripts via tag names in the Custom Permalinks plugin, leading to stored XSS attacks against other users.

- **Severity:** Medium 4.4 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Aug 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-qhg4-f6mr-54g9

## What is CVE-2023-0926?

CVE-2023-0926 is a medium-severity cross-site scripting vulnerability in sasiddiqui Custom Permalinks, published on 24 Aug 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The Custom Permalinks plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.6.0 due to insufficient input sanitization and output escaping on tag names. This allows authenticated users, with editor-level permissions or greater to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page, even when 'unfiltered_html' has been disabled.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2023-0926?

It affects 1 product.


Products: Samiahmedsiddiqui Custom Permalinks.

## How do I fix CVE-2023-0926?

No fix has been published for CVE-2023-0926 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-0926 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0926 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-0926 and fix it if it is affected.

What it is: CVE-2023-0926 is a medium-severity cross-site scripting vulnerability in sasiddiqui Custom Permalinks, published on 24 Aug 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0926 exists.

Affected product: sasiddiqui Custom Permalinks. 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-2023-0926/ (Markdown: https://insights.sbomify.com/CVE-2023-0926/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-0926
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-0926
- OSV: https://osv.dev/vulnerability/CVE-2023-0926

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-0926/
Summaries are generated and may contain mistakes; the official description above is the record.