Is CVE-2021-29439 in the CISA KEV catalog?

No. CVE-2021-29439 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-29439?

CVE-2021-29439 has a CVSS v3 base score of 7.2 (HIGH).

What is the EPSS score for CVE-2021-29439?

CVE-2021-29439 has an EPSS score of 2.59% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-29439?

Upgrade grav admin to 1.10.11 or later.

CVE & CISA-KEV Catalog

CVE-2021-29439

HIGHEPSS 83th pctl

7.2

CVSS v3

NVD

Description

The Grav admin plugin prior to version 1.10.11 does not correctly verify caller's privileges. As a consequence, users with the permission `admin.login` can install third-party plugins and their dependencies. By installing the right plugin, an attacker can obtain an arbitrary code execution primitive and elevate their privileges on the instance. The vulnerability has been addressed in version 1.10.11. As a mitigation blocking access to the `/admin` path from untrusted sources will reduce the probability of exploitation.

CWE-863Incorrect Authorization

How to fix

Remediation Available

grav adminNVD

Affected:< 1.10.11Fixed in:1.10.11CVE-2021-29439derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.59%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Third-Party Advisory1

github.com

Other references1

github.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

Embed a live status badge for CVE-2021-29439

Markdown

[![CVE-2021-29439](https://tridentstack.com/cve/badge/CVE-2021-29439.svg)](https://tridentstack.com/cve/CVE-2021-29439)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-29439"><img src="https://tridentstack.com/cve/badge/CVE-2021-29439.svg" alt="CVE-2021-29439"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.