5.3
MEDIUM CVSS 3.1
CVE-2020-35477
MediaWiki Log Entry Information Disclosure Vulnerability
Description

MediaWiki before 1.35.1 blocks legitimate attempts to hide log entries in some situations. If one sets MediaWiki:Mainpage to Special:MyLanguage/Main Page, visits a log entry on Special:Log, and toggles the "Change visibility of selected log entries" checkbox (or a tags checkbox) next to it, there is a redirection to the main page's action=historysubmit (instead of the desired behavior in which a revision-deletion form appears).

INFO

Published Date :

Dec. 18, 2020, 8:15 a.m.

Last Modified :

Nov. 21, 2024, 5:27 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2020-35477 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fedoraproject fedora
1 Debian debian_linux
1 Mediawiki mediawiki
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
Solution
Update MediaWiki to address a log entry information disclosure vulnerability.
  • Upgrade MediaWiki to version 1.35.1 or later.
  • Update the mediawiki and mediawiki-classes packages.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-35477 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-35477 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-35477 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-35477 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/
    Added Reference https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html
    Added Reference https://phabricator.wikimedia.org/T205908
    Added Reference https://www.debian.org/security/2020/dsa-4816
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/
  • Modified Analysis by [email protected]

    Apr. 08, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/ Mailing List, Third Party Advisory
    Changed Reference Type https://phabricator.wikimedia.org/T205908 Exploit, Third Party Advisory https://phabricator.wikimedia.org/T205908 Exploit, Issue Tracking, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-20 CWE-670
  • CVE Modified by [email protected]

    Dec. 27, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Dec. 23, 2020

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html Mailing List, Third Party Advisory
    Changed Reference Type https://phabricator.wikimedia.org/T205908 Third Party Advisory https://phabricator.wikimedia.org/T205908 Exploit, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 23, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 21, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html No Types Assigned https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html Mailing List, Release Notes, Vendor Advisory
    Changed Reference Type https://phabricator.wikimedia.org/T205908 No Types Assigned https://phabricator.wikimedia.org/T205908 Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2020/dsa-4816 No Types Assigned https://www.debian.org/security/2020/dsa-4816 Third Party Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration OR *cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* versions up to (excluding) 1.35.1
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 18, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4816 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.66 }} 0.11%

score

0.70319

percentile