CVE-2022-27913 [20221002] - Core - RXSS through reflection of user input in headings
Reflected XSS in Joomla allows attackers to execute arbitrary scripts in victim browsers via malicious input in headings.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-27913?
CVE-2022-27913 is a medium-severity cross-site scripting vulnerability in Joomla Joomla\!, published on 25 Oct 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An issue was discovered in Joomla! 4.2.0 through 4.2.3. Inadequate filtering of potentially malicious user input leads to reflected XSS vulnerabilities in various components.
Weakness: CWE-79
Which versions are affected by CVE-2022-27913?
1 open source package ship an affected version, including joomla. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
joomla Bitnami | From 4.0.0 to 4.2.3 | None |
Products include Joomla Joomla\!.
How do I fix CVE-2022-27913?
No fix has been published for CVE-2022-27913 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2022-27913 being exploited?
There is no known exploitation of CVE-2022-27913 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Joomla Joomla\!
- CVE-2016-10033 PHPMailer Command Injection
- CVE-2023-23752 Joomla! Improper Access Control
- CVE-2026-48902 Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links
- CVE-2025-25226 [20250401] - Joomla Framework - SQL injection vulnerability in quoteNameStr method of Database package
- CVE-2022-23795 [20220303] - Core - User row are not bound to a authentication mechanism
Sources
Also known as BIT-joomla-2022-27913, GHSA-8g63-qvh8-q593.