CVE-2022-42111 — A Cross-site scripting (XSS) vulnerability in the Sharing module's user notifica

A Cross-site scripting (XSS) vulnerability in the Sharing module's user notification in Liferay Portal 7.2.1 through 7.4.2, and Liferay DXP 7.2 before fix pack 19, and 7.3 before update 4 allows remote attackers to inject arbitrary web script or HTML by sharing an asset with

01What is this vulnerability?

A Cross-site scripting (XSS) vulnerability in the Sharing module's user notification in Liferay Portal 7.2.1 through 7.4.2, and Liferay DXP 7.2 before fix pack 19, and 7.3 before update 4 allows remote attackers to inject arbitrary web script or HTML by sharing an asset with a crafted payload.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-11-15T00:00:00.000Z
• Last modified: 2024-08-03T13:03:44.112Z

09References

• portal.liferay.dev — https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publishe…
• issues.liferay.com — https://issues.liferay.com/browse/LPE-17379