CVE-2021-21255 json
entities switch IDOR
published 2021-03-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8636
- cvss
- 5.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking and software auditing. In GLPI version 9.5.3, it was possible to switch entities with IDOR from a logged in user. This is fixed in version 9.5.4.
Patch / fix
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2021-21255 updated cvss 5.7
glpi: it is possible to switch entities with IDOR from a logged in user
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N |
| NVD | 3.1 | 5.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:P/I:N/A:N |
Affected products
- glpi-project glpi
Classification
References
-
github.com
/glpi-project/glpi/commit/aade65b7f67d46f23d276a8acb0df70651c3b1dc
patch, third-party-advisory
-
github.com
/glpi-project/glpi/security/advisories/GHSA-v3m5-r3mx-ff9j
third-party-advisory
Sources
- CVE List CVE-2021-21255
- NVD CVE-2021-21255
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.