CVE-2020-10074Network attack vector

Unauthenticated account takeover via expired confirmation token

Published Mar 13, 2020 · Updated Aug 4, 2024

Incorrect access control in GitLab 10.1 through 12.8.1 allows remote attackers to take over accounts through expired confirmation links. The account confirmation flow accepts a confirmation token after its intended expiration instead of rejecting the link. No authentication or victim interaction is required after an expired confirmation link is obtained, and successful use grants control of the linked account.

CVSS severity9.8
Critical
EPSS probability1.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in GitLab 10.1 through 12.8.1 allows remote attackers to take over accounts through expired confirmation links. The account confirmation flow accepts a confirmation token after its intended expiration instead of rejecting the link. No authentication or victim interaction is required after an expired confirmation link is obtained, and successful use grants control of the linked account.

The record

CVE
CVE-2020-10074
Published
Mar 13, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2020CVE 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

7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1078Valid Accounts

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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