OATHAuth Extension up to 1.31.9/1.32.x/1.34.3 on MediaWiki Multiple Requests improper authentication
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.5 | $0-$5k | 0.00 |
Summary
A vulnerability was found in OATHAuth Extension up to 1.31.9/1.32.x/1.34.3 on MediaWiki and classified as problematic. Affected is an unknown function. Executing a manipulation as part of Multiple Requests can lead to improper authentication. This vulnerability is registered as CVE-2020-25827. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.
Details
A vulnerability has been found in OATHAuth Extension up to 1.31.9/1.32.x/1.34.3 on MediaWiki and classified as problematic. This vulnerability affects an unknown code. The manipulation as part of a Multiple Requests leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality. CVE summarizes:
An issue was discovered in the OATHAuth extension in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. For Wikis using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level. Thus, multiple requests can be made across many wikis/sites concurrently.
The weakness was published 09/27/2020 (Website). The advisory is shared for download at lists.wikimedia.org. This vulnerability was named CVE-2020-25827 since 09/23/2020. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 248442 (Linux Distros Unpatched Vulnerability : CVE-2020-25827), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 1.31.10 or 1.34.4 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (248442). Similar entries are available at VDB-162036, VDB-162037, VDB-162038 and VDB-162039. VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Name
Version
- 1.0
- 1.1
- 1.2
- 1.3
- 1.4
- 1.5
- 1.6
- 1.7
- 1.8
- 1.9
- 1.10
- 1.11
- 1.12
- 1.13
- 1.14
- 1.15
- 1.16
- 1.17
- 1.18
- 1.19
- 1.20
- 1.21
- 1.22
- 1.23
- 1.24
- 1.25
- 1.26
- 1.27
- 1.28
- 1.29
- 1.30
- 1.31
- 1.31.0
- 1.31.1
- 1.31.2
- 1.31.3
- 1.31.4
- 1.31.5
- 1.31.6
- 1.31.7
- 1.31.8
- 1.31.9
- 1.32
- 1.34.0
- 1.34.1
- 1.34.2
- 1.34.3
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.6VulDB Meta Temp Score: 5.5
VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Improper authenticationCWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 248442
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2020-25827
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: OATHAuth Extension 1.31.10/1.34.4
Timeline
09/23/2020 🔍09/27/2020 🔍
09/28/2020 🔍
08/12/2025 🔍
Sources
Advisory: lists.wikimedia.orgStatus: Confirmed
Confirmation: 🔍
CVE: CVE-2020-25827 (🔍)
GCVE (CVE): GCVE-0-2020-25827
GCVE (VulDB): GCVE-100-162040
See also: 🔍
Entry
Created: 09/28/2020 07:22Updated: 08/12/2025 06:23
Changes: 09/28/2020 07:22 (40), 09/28/2020 07:27 (3), 11/13/2020 07:57 (2), 11/14/2020 17:59 (1), 11/14/2020 18:02 (8), 08/12/2025 06:23 (20)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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