CVE-2020-25476 json
Liferay Portal Vulnerable to Cross-Site Scripting (XSS) via User Name Parameter
published 2021-01-07 5 y ago modified 2026-06-17 4 mo ago also GHSA-pvpg-9553-f979 , EUVD-2020-18162
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
Liferay CMS Portal version 7.1.3 and 7.2.1 have a blind persistent cross-site scripting (XSS) vulnerability in the user name parameter to Calendar. An attacker can insert the malicious payload on the username, lastname or surname fields of its own profile, and the malicious payload will be injected and reflected in the calendar of the user who submitted the payload. An attacker could escalate its privileges in case an admin visits the calendar that injected the payload.
Patch / fix
Exploit prediction
0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | com.liferay.portal:release.portal.bom | <=7.1.3 >=7.2, <=7.2.1 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
portal.liferay.dev
/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119318646
web, patch, vendor-advisory
-
github.com
/community-security-team/liferay-portal/compare/7.2.1-ga2...7.2.1-cumulative.patch
web, patch, third-party-advisory
-
github.com
/community-security-team/liferay-portal/compare/7.1.3-ga4...7.1.3-cumulative.patch
web, patch, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-25476
advisory
-
github.com
/liferay/liferay-portal
package
Sources
- CVE List CVE-2020-25476
- GitHub Advisory GHSA-pvpg-9553-f979
- NVD CVE-2020-25476
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