CVE-2026-45013 Apostrophe has a Weak Password Recovery Mechanism for Forgotten Password and Improper Input Validation
An attacker can hijack password reset links by manipulating the Host header, leading to account takeover if the victim clicks the malicious link.
- 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-2026-45013?
CVE-2026-45013 is a high-severity vulnerability in apostrophecms apostrophe, published on 12 Jun 2026. 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
ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 have a password reset flow that constructs the reset URL using `req.hostname`, which is derived directly from the attacker-controlled HTTP `Host` header when `apos.baseUrl` is not explicitly configured. An unauthenticated attacker who knows a victim's email address can send a crafted reset request that causes the application to email the victim a reset link pointing to the attacker's domain. When the victim clicks the link, the valid reset token is delivered to the attacker, enabling full account takeover. As of time of publication, no known patched versions are available.
Which versions are affected by CVE-2026-45013?
2 open source packages ship an affected version, including apostrophe.
| Package | Affected | Fixed in |
|---|---|---|
apostrophe npm | All versions to 4.29.0 | None |
apostrophe npm | All versions to 4.29.0 | None |
How do I fix CVE-2026-45013?
No fix has been published for CVE-2026-45013 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-45013 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45013 exists.
Sources
Also known as GHSA-gf43-24g3-5hw2.