Track vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
9.0
CVE-2026-55562: Cronicle admin activity log can execute attacker code
CVE-2026-55562 · published today
Summary
In Cronicle versions before 0.9.119, a user's full name is shown in the admin activity log without proper cleaning. An attacker who can set their own name (or register a free account) can insert malicious script that runs when an administrator views the log, potentially giving the attacker full control of the system. Upgrade to version 0.9.119 or later to apply the fix.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| jhuckaby | cronicle | < 0.9.119 |
Original advisory text
Cronicle: Stored XSS in admin Activity Log via account full_name field
Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.119, the administrator Activity Log in htdocs/js/pages/admin/Activity.js concatenates the attacker-controlled item.user.full_name value into HTML without applying encode_entities and inserts the result through this.div.html. The bundled pixl-server-user input filter can be bypassed by a tag containing a line break because its regular expression does not match newlines. An authenticated non-administrator can update the attacker's own name through /api/user/update using a valid session and current password; when free_accounts is enabled, an anonymous attacker can instead plant the name during self-registration. The stored name executes script in an administrator's session when the Activity Log is opened, enabling administrator takeover and subsequent command execution through privileged Cronicle features. This issue is fixed in version 0.9.119.
References
- https://github.com/jhuckaby/Cronicle/commit/8b60eb5b041614ab661df50e58e612f5e42a... x_refsource_MISC
- https://github.com/jhuckaby/Cronicle/releases/tag/v0.9.119 x_refsource_MISC
- https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-vh39-3pcm-2j63 x_refsource_CONFIRM
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published13 Oct 2026
Updated13 Oct 2026
First seen13 Oct 2026
Track software like this
Free during beta