# CVE-2026-66092: openEQUELLA stored cross-site scripting in login notice

Source: https://junglewise.ai/threats/cve-2026-66092-in-openequella-before-2026-2-the-pre-login-notice-is-stored-as  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-29. Updated: 2026-10-29  
License: CC BY 4.0 with a link back

CVE-2026-66092 · Severity: info · Published 2026-10-29

openEQUELLA is a digital asset management system that displays notices on its login page. An administrator or someone granted system settings privileges can inject malicious scripts into the login notice, which will execute in the browsers of anyone attempting to log in. This could be used to steal login credentials or redirect users to phishing sites.

Technologies: [openEQUELLA](https://junglewise.ai/threats/technologies/openequella). Vendors: [openEQUELLA](https://junglewise.ai/threats/vendors/openequella).

## Quick answers

**Is CVE-2026-66092 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-66092 being exploited in the wild.

**How severe is CVE-2026-66092?** Informational severity, published 29 October 2026.

**Which products and versions are affected?** openEQUELLA before 2026.2.

**Is there a fix for CVE-2026-66092?** Yes: fixed in 2026.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-66092 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-66092?** Check whether you run openEQUELLA at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2026.2

## Technical details

The pre-login notice endpoint (PUT /api/preloginnotice) stores HTML without sanitization or encoding, and renders it unsanitized on the legacy login page, leading to stored XSS. Users with EDIT_SYSTEM_SETTINGS permission can exploit this; unauthenticated exploitation is possible if EDIT_SYSTEM_SETTINGS has been granted to guest or Everyone roles.

## Affected products

- openEQUELLA openEQUELLA before 2026.2

## Timeline

- 2026-10-29: disclosed

## References

- [https://github.com/openequella/openEQUELLA/security/advisories/GHSA-9jhj-7h37-3j2c](https://github.com/openequella/openEQUELLA/security/advisories/GHSA-9jhj-7h37-3j2c)
- [https://openequella.github.io/guides/](https://openequella.github.io/guides/)

## Related threats

- [openEQUELLA authentication bypass in user info endpoint](https://junglewise.ai/threats/cve-2026-66091-in-openequella-before-2026-1-the-get-api-userquery-userinfobackup)
- [openEQUELLA XXE in item metadata XML parser](https://junglewise.ai/threats/cve-2026-66090-in-openequella-before-2026-1-the-xml-parser-used-for-item)
- [openEQUELLA XML external entity injection in SOAP API](https://junglewise.ai/threats/cve-2026-66089-in-openequella-before-2026-1-the-soap-api-parses-xml-supplied-in)
- [openEQUELLA OS command injection in scripting engine](https://junglewise.ai/threats/cve-2026-66088-in-openequella-before-2026-1-the-system-execute-function)
- [openEQUELLA stored XSS in pre-login notice image upload](https://junglewise.ai/threats/cve-2026-16889-in-openequella-before-2026-1-the-pre-login-notice-image-upload)