CVE-2021-21255

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.85% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 57.9% of scored records. A rank, not a probability.

NVD base score

5.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-03-02 19:40Z5 YR AGO

Last updated

2024-08-03 18:09Z2 YR AGO

Reserved

2020-12-22

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N

Weaknesses

• CWE-862Missing AuthorizationClass
• CWE-639Authorization Bypass Through User-Controlled KeyBase

Data version

5.1

Document digest

987685e29ca1357e4a5f7f65605c5a459100b1687971257a375d6a7ed4981b2f

• github.comhttps://github.com/glpi-project/glpi/security/advisories/GHSA-v3m5-r3mx-ff9jx_refsource_CONFIRM
• github.comhttps://github.com/glpi-project/glpi/commit/aade65b7f67d46f23d276a8acb0df70651c3b1dcx_refsource_MISC