What’s Vulnerable › Vulnerabilities

CVE-2026-3951: LockerProject Locker Error Response registry.js authIsAwesome cross site scripting

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-11 · updated 2026-06-17
• Weakness: CWE-79

Description

A security flaw has been discovered in LockerProject Locker 0.0.0/0.0.1/0.1.0. Affected is the function authIsAwesome of the file source-code/Locker-master/Ops/registry.js of the component Error Response Handler. The manipulation of the argument ID results in cross site scripting. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

• LockerProject Locker: 0.0.0, 0.0.1, 0.1.0

References

• https://github.com/LockerProject/Locker/
• https://github.com/LockerProject/Locker/issues/963
• https://github.com/LockerProject/Locker/issues/963#issue-3988004027
• https://vuldb.com/?ctiid.350383
• https://vuldb.com/?id.350383
• https://vuldb.com/?submit.767231

Get alerted when CVE-2026-3951 or the next vulnerability affects your stack