CVE-2026-44264 Weblate is vulnerable to XSS via crafted Markdown
Attackers can inject malicious scripts via crafted Markdown in user comments, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44264?
CVE-2026-44264 is a medium-severity cross-site scripting vulnerability in WeblateOrg weblate, published on 7 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Weblate is a web based localization tool. Prior to version 5.17.1, the Markdown renderer used in user comments and other user-provided content didn't properly sanitize some attributes. This issue has been patched in version 5.17.1.
Weakness: CWE-80
Which versions are affected by CVE-2026-44264?
3 open source packages ship an affected version, including weblate. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
weblate PyPI | All versions | 5.17.1 |
weblate PyPI | All versions | 5.17.1 |
weblate PyPI | All versions | 5.17.1 |
Products include Weblate Weblate.
How do I fix CVE-2026-44264?
Upgrade weblate to 5.17.1 or later.
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-2026-44264 being exploited?
There is no known exploitation of CVE-2026-44264 in the wild and no public exploit code.
Other vulnerabilities in WeblateOrg weblate
- CVE-2025-68398 Weblate has git config file overwrite vulnerability that leads to remote code execution
- CVE-2026-34393 Weblate: Privilege escalation in the user API endpoint
- CVE-2026-33435 Weblate: Remote code execution during backup restoration
- CVE-2026-34242 Weblate: Arbitrary File Read via Symlink
- CVE-2025-68279 Weblate has an arbitrary file read via symbolic links
Sources
Also known as GHSA-5cmv-3rc4-7279, PYSEC-2026-2319.