Arbitrary File Upload Affecting weblate package, versions [,5.17)
Threat Intelligence
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The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published20 Apr 2026
- disclosed16 Apr 2026
- creditggamno
Introduced: 16 Apr 2026
CVE-2026-33435 (opens in a new tab)How to fix?
Upgrade weblate to version 5.17 or higher.
Overview
weblate is an A web-based continuous localization system with tight version control integration
Affected versions of this package are vulnerable to Arbitrary File Upload in the backup restoration, due to insufficient filtering of configuration files. An attacker with access to create projects and restore backups can execute arbitrary code by including malicious configuration files in a backup and restoring it in an environment where they have project creation permissions.