# CVE-2025-71177: LavaLite CMS stored XSS in package creation and search

Source: https://junglewise.ai/threats/cve-2025-71177-lavalite-cms-stored-xss-in-package-creation-and-search  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-01-23. Updated: 2026-07-14  
License: CC BY 4.0 with a link back

CVE-2025-71177 · Severity: medium · CVSS 5.4 · Published 2026-01-23

LavaLite CMS, a content management system used for building websites and web applications, is vulnerable to a security flaw in its package management feature. An authenticated user can upload malicious scripts disguised as package names or descriptions. When other users, including administrators, search for packages, these scripts automatically run in their browsers, potentially allowing attackers to steal login sessions or perform unauthorized actions.

Technologies: [LavaLite CMS](https://junglewise.ai/threats/technologies/lavalite-cms), [lavalite/cms (Packagist)](https://junglewise.ai/threats/technologies/packagist-lavalite-cms). Vendors: [Lavalite](https://junglewise.ai/threats/vendors/lavalite), [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2025-71177 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-71177 being exploited in the wild.

**How severe is CVE-2025-71177?** Medium severity, with a CVSS score of 5.4, published 23 January 2026.

**Which products and versions are affected?** LavaLite CMS <= 10.1.0; lavalite/cms (Packagist) ECOSYSTEM:introduced=0,last_affected=10.1.0.

**Is there a fix for CVE-2025-71177?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-71177 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2025-71177?** Check whether you run Lavalite, LavaLite CMS or lavalite/cms (Packagist) 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.

## Technical details

A stored cross-site scripting (XSS) vulnerability exists in LavaLite CMS versions up to and including 10.1.0. The flaw is located within the package creation and search components, where the 'Name' and 'Description' fields fail to properly sanitize user-supplied HTML or JavaScript. An authenticated attacker can inject malicious payloads into these fields; when a victim performs a search that returns the compromised package, the payload is rendered without proper output encoding. This allows for the execution of arbitrary script in the context of the victim's browser session, which can lead to session hijacking or credential theft. As of the advisory date, users are advised to monitor for patches or manually implement output encoding for search result displays.

## Affected products

- LavaLite LavaLite CMS <= 10.1.0

## Identifiers

- CVE-2025-71177
- GHSA-w7rq-fgx4-4xcm

## Timeline

- 2025-01-27: disclosed: Issue reported on GitHub
- 2026-01-23: advisory: NVD and VulnCheck published advisory

## References

- [https://github.com/LavaLite/cms/issues/420](https://github.com/LavaLite/cms/issues/420)
- [https://lavalite.org/](https://lavalite.org/)
- [https://www.vulncheck.com/advisories/lavalite-cms-stored-xss-via-package-creation-and-search](https://www.vulncheck.com/advisories/lavalite-cms-stored-xss-via-package-creation-and-search)

## Related threats

- [LavaLite CMS missing authentication in Filer module](https://junglewise.ai/threats/cve-2026-113358-lavalite-cms-through-10-1-2-contains-a-missing-authentication)
- [LavaLite CMS authorization bypass in user update](https://junglewise.ai/threats/cve-2026-108951-lavalite-cms-through-10-1-2-contains-an-authorization-bypass)
- [Lavalite CMS Cross Site Scripting vulnerability](https://junglewise.ai/threats/cve-2024-31828-lavalite-cms-cross-site-scripting-vulnerability)
- [LavaLite vulnerable to Cross Site Scripting](https://junglewise.ai/threats/cve-2023-30124-lavalite-vulnerable-to-cross-site-scripting)
- [LavaLite CMS vulnerable to host header injection attack](https://junglewise.ai/threats/cve-2023-27237-lavalite-cms-vulnerable-to-host-header-injection-attack)