CVE-2021-27931 in the critical feed json
LumisXP (aka Lumis Experience Platform) before 10.0.0 allows unauthenticated blind XXE via an API request to PageControllerXml.jsp.
published 2021-03-03 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14651
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 18.1%
- EPSS 18.1% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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.
Patch / fix
- lumis lumis_experience_platform 10.0.0
Exploit prediction
18.13% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template LumisXP <10.0.0 - Blind XML External Entity Attack nuclei detection template
- github.com https://github.com/sl4cky/LumisXP-XXE---POC/blob/main/poc.txt referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:N/A:P |
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
-
github.com
/sl4cky/LumisXP-XXE---POC/blob/main/poc.txt
exploit, third-party-advisory
Sources
- CVE List CVE-2021-27931
- NVD CVE-2021-27931
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.