XXE in Lumis Experience Platform
CVE-2021-27931
LumisXP (aka Lumis Experience Platform) before 10.0.0 allows unauthenticated blind XXE via an API request to PageControllerXml.jsp. One can send a request crafted with an XXE payload and achieve outcomes such as reading local server files or denial of service.
Vulnerability class: XXE (XML External Entity)
EPSS: 0.181 (96.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Lumis Lumis_experience_platform
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-27931?
- CVE-2021-27931 is a critical-severity vulnerability in Lumis Experience Platform, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.1/10. Published 2021-03-03.
- How severe is CVE-2021-27931?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2021-27931 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.