weblate up to 5.11 OTP excessive authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in weblate up to 5.11. Affected by this issue is some unknown functionality of the component OTP. Performing a manipulation results in excessive authentication. This vulnerability is reported as CVE-2025-47951. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in weblate up to 5.11. This affects an unknown code of the component OTP. The manipulation with an unknown input leads to a excessive authentication vulnerability. CWE is classifying the issue as CWE-307. The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks. This is going to have an impact on confidentiality. The summary by CVE is:

Weblate is a web based localization tool. Prior to version 5.12, the verification of the second factor was not subject to rate limiting. The absence of rate limiting on the second factor endpoint allows an attacker with valid credentials to automate OTP guessing. This issue has been patched in version 5.12.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-47951 since 05/14/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1110.001 according to MITRE ATT&CK.

Upgrading to version 5.12 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch f806293451248c5d95e45b3b507e9d158bc4f384 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18400). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.9

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.9
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Excessive authentication
CWE: CWE-307 / CWE-799 / CWE-400
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: weblate 5.12
Patch: f806293451248c5d95e45b3b507e9d158bc4f384

Timelineinfo

05/14/2025 CVE reserved
06/17/2025 +34 days Advisory disclosed
06/17/2025 +0 days VulDB entry created
06/17/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-57jg-m997-cx3q
Status: Confirmed

CVE: CVE-2025-47951 (🔒)
GCVE (CVE): GCVE-0-2025-47951
GCVE (VulDB): GCVE-100-312687
EUVD: 🔒

Entryinfo

Created: 06/17/2025 03:02
Updated: 06/17/2025 04:08
Changes: 06/17/2025 03:02 (67), 06/17/2025 04:08 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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