MediaWiki up to 1.37 Parameter Special:ImportFile clientUrl cross site scripting
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.5 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as problematic, was found in MediaWiki up to 1.37. Affected by this issue is some unknown functionality of the file Special:ImportFile of the component Parameter Handler. Executing a manipulation of the argument clientUrl can lead to cross site scripting. This vulnerability appears as CVE-2021-45474. The attack may be performed from remote. There is no available exploit.
Details
A vulnerability has been found in MediaWiki up to 1.37 (Content Management System) and classified as problematic. This vulnerability affects some unknown functionality of the file Special:ImportFile of the component Parameter Handler. The manipulation of the argument clientUrl with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity.
The weakness was presented 12/24/2021. The advisory is available at gerrit.wikimedia.org. This vulnerability was named CVE-2021-45474 since 12/24/2021. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.
The vulnerability scanner Nessus provides a plugin with the ID 261252 (Linux Distros Unpatched Vulnerability : CVE-2021-45474), which helps to determine the existence of the flaw in a target environment.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at Tenable (261252). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
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
- 1.32
- 1.33
- 1.34
- 1.35
- 1.36
- 1.37
License
Website
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.5VulDB Meta Temp Score: 3.5
VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
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: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
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: 261252
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-45474
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/24/2021 🔍12/24/2021 🔍
12/24/2021 🔍
09/09/2025 🔍
Sources
Product: mediawiki.orgAdvisory: gerrit.wikimedia.org
Status: Confirmed
CVE: CVE-2021-45474 (🔍)
GCVE (CVE): GCVE-0-2021-45474
GCVE (VulDB): GCVE-100-189058
Entry
Created: 12/24/2021 08:29Updated: 09/09/2025 14:38
Changes: 12/24/2021 08:29 (39), 12/27/2021 09:07 (1), 09/09/2025 14:38 (16)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
No comments yet. Languages: en.
Please log in to comment.