CVE-2026-64944 Apache Answer: Stored XSS via unsanitized HTML in imported question content
Attackers can inject malicious scripts via imported question content, leading to stored XSS affecting all viewers, including administrators.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-64944?
CVE-2026-64944 is a cross-site scripting vulnerability in Apache Answer, published on 19 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Answer.
This issue affects Apache Answer: through 2.0.2.
The importer stores imported question bodies as raw HTML without passing them through the normal Markdown-to-HTML sanitization path, so attacker-controlled HTML embedded in an imported data source is persisted and rendered to all viewers (including privileged users) as stored XSS.
Users are recommended to upgrade to version 2.0.3, which fixes the issue.
Weakness: CWE-79
Which versions are affected by CVE-2026-64944?
How do I fix CVE-2026-64944?
No fix has been published for CVE-2026-64944 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-2026-64944 being exploited?
There is no known exploitation of CVE-2026-64944 in the wild and no public exploit code.
Sources
Also known as GHSA-g7gw-qx49-52c2.