Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Xuxueli XXL-SSO (Maven package com.xuxueli:xxl-sso) versions up to and including 1.1.0 are affected by a cross-site scripting flaw in the login page, where the errorMsg argument is not handled safely. A remote attacker can exploit this by getting a user to open a crafted link, which can run script in the user's browser. No fixed version is listed; the source gives few further details.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.3 | Medium | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P | CNA (VulDB) |
- CISA KEV Not listed.
- EPSS 0.0047, the 41st percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:10 UTC First seen by agentprime
- 31 Oct 2026, 15:10 UTC Confirmed by OSV