CVE-2021-45327Network attack vector

State changes via CSRF-exposed GET routes

Published Feb 8, 2022 · Updated Aug 4, 2024

Cross-site request forgery in Gitea before 1.11.2 allows remote attackers to trigger state-changing actions through crafted GET requests. Multiple user, organization, repository, admin-dashboard, and logout routes accepted GET for actions, while Gitea's CSRF handler checked only POST requests. A signed-in user's browser must request an attacker-controlled URL; the resulting action runs with that user's existing permissions.

CVSS severity9.8
Critical
EPSS probability2.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Gitea before 1.11.2 allows remote attackers to trigger state-changing actions through crafted GET requests. Multiple user, organization, repository, admin-dashboard, and logout routes accepted GET for actions, while Gitea's CSRF handler checked only POST requests. A signed-in user's browser must request an attacker-controlled URL; the resulting action runs with that user's existing permissions.

The record

CVE
CVE-2021-45327
Published
Feb 8, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-294, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-294Authentication Bypass by Capture-replay
T1566.002Spearphishing Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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