CVE-2026-7501

LinkStackOrg LinkStack UserController.php editPage cross site scripting

State: Published
Severity: 5.1 Medium
Published: Apr 30, 2026
Updated: May 1, 2026
Reserved: Apr 30, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P	VulDB
3.1	3.5 Low	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	VulDB
3.0	3.5 Low	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R	VulDB
2.0	4.0 Medium	AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-79 Cross Site Scripting
CWE-94 Code Injection

Affected Products

Product	Versions
LinkStackLinkStackOrg	4.8.0Affected 4.8.1Affected 4.8.2Affected 4.8.3Affected 4.8.4Affected 4.8.5Affected 4.8.6Affected

References

VDB-360311 | LinkStackOrg LinkStack UserController.php editPage cross site scriptingvdb-entrytechnical-description
VDB-360311 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #801651 | LinkStackOrg LinkStack 4.8.6 Improper Neutralization of Alternate XSS Syntaxthird-party-advisory
https://github.com/LinkStackOrg/LinkStack/pull/974issue-trackingpatch
https://github.com/az10b/security-advisories/blob/main/stored_xss_linkstack.mdexploit
https://github.com/LinkStackOrg/LinkStack/product

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