GHSA-phph-xpj4-wvcv Cross-Site Scripting in hexo-admin
Attackers with post creation privileges can execute arbitrary JavaScript in victims' browsers via unsanitized markdown in hexo-admin.
- 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 GHSA-phph-xpj4-wvcv?
GHSA-phph-xpj4-wvcv is a cross-site scripting vulnerability in hexo-admin, published on 3 Sep 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
All versions of hexo-admin are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize rendered markdown, allowing attackers to execute arbitrary JavaScript in a victim's browser if they are able to create new posts.
Recommendation
No fix is currently available. Consider using an alternative package until a fix is made available.
Which versions are affected by GHSA-phph-xpj4-wvcv?
2 open source packages ship an affected version, including hexo-admin.
| Package | Affected | Fixed in |
|---|---|---|
hexo-admin npm | From 0.0.0 | None |
hexo-admin npm | From 0.0.0 | None |
How do I fix GHSA-phph-xpj4-wvcv?
No fix has been published for GHSA-phph-xpj4-wvcv 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 GHSA-phph-xpj4-wvcv being exploited?
There is no known exploitation of GHSA-phph-xpj4-wvcv in the wild and no public exploit code.