Vulnerability · Published Apr 30, 2026 · Assigned by VulDB
CVE-2026-7501LinkStackOrg LinkStack UserController.php editPage cross site scripting
Low 3.5
In plain English
A low-severity cross-site scripting in LinkStack from LinkStackOrg. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Official description
A weakness has been identified in LinkStackOrg LinkStack up to 4.8.6. Impacted is the function editPage of the file app/Http/Controllers/UserController.php. Executing a manipulation of the argument pageDescription can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through a pull request but has not reacted yet.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| LinkStackOrg | LinkStack | 4.8.04.8.14.8.24.8.34.8.44.8.54.8.6 |
Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
References
- VDB-360311 | LinkStackOrg LinkStack UserController.php editPage cross site scripting vdb-entry, technical-description
- VDB-360311 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #801651 | LinkStackOrg LinkStack 4.8.6 Improper Neutralization of Alternate XSS Syntax third-party-advisory
- https://github.com/LinkStackOrg/LinkStack/pull/974 issue-tracking, patch
- https://github.com/az10b/security-advisories/blob/main/stored_xss_linkstack.md exploit
- https://github.com/LinkStackOrg/LinkStack/ product