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Fencer Intel
critical 9.1

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 5y ago modified 4mo 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

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Exploit prediction

18.13% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

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

Sources

Fencer Intel 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.