CVE-2026-7501

LinkStackOrg LinkStack UserController.php editPage cross site scripting

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

LinkStackOrg · LinkStack

CVSS v4.0 VULDB

2.0 LOWCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULDB

3.5 LOWCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

CVSS v2.0 VULDB

4.0 MEDIUMAV:N/AC:L/Au:S/C:N/I:P/A:N

EPSS

0.35% chance of exploitation in the next 30 days, 27th percentile

Published

2026-04-30

Updated

2026-05-01

Proof-of-concept exploits (1)

• az10b/security-advisories/blob/main/stored_xss_linkstack.md

References

• CVE Record
• NVD entry

Related

• CVE-2026-7502
• CVE-2026-7581
• CVE-2026-8194