CVE-2021-31553

mediumPriorität · verfolgen · 26EPSS 0.014 · 72. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.40% (72nd) EPSS

CVSS 6.4 · medium

Is it mine?

3 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · bewertet 2026-10-24

An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2. MediaWiki usernames with trailing whitespace could be stored in the cu_log database table such that denial of service occurred for certain CheckUser extension pages and functionality. For example, the attacker could turn off Special:CheckUserLog and thus interfere with usage tracking.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

6.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.06.4mediumAV:N/AC:L/Au:N/C:N/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 4.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Lprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 2.5

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-428USprimär

betroffene Produkte (3)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
mediawiki mediawiki≤ 1.35.2nvdUScpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
Bitnami mediawiki< 1.35.3osvUSpkg:bitnami/mediawiki

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

BIT-mediawiki-2021-315532024-03-06vendor · osvUS
An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2. MediaWiki usernames with trailing whitespace could be stored in the cu_log database table such that denial of service occurred for certain CheckUser extension pages and functionality. For example, the attacker could turn off Special:CheckUserLog and thus interfere with usage tracking.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

veröffentlicht 2021-04-22geändert 2026-06-17

verwandt (477)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2023-38408US	critical9.8	79.7% (100th)	Exploit	2023-07-20
The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-con…
CVE-2020-13699US	high8.8	25.8% (98th)	Exploit	2020-07-29
TeamViewer Desktop for Windows before 15.8.3 does not properly quote its custom URI handlers. A malicious website could launch TeamViewer with arbitrary parameters, as demonstrated…
CVE-2019-17658US	critical9.8	2.18% (82nd)	Exploit	2020-03-12
An unquoted service path vulnerability in the FortiClient FortiTray component of FortiClientWindows v6.2.2 and prior allow an attacker to gain elevated privileges via the FortiClie…
CVE-2019-18915US	high7.8	1.48% (74th)	Exploit	2020-02-13
A potential security vulnerability has been identified with certain versions of HP System Event Utility prior to version 1.4.33. This vulnerability may allow a local attacker to ex…
CVE-2018-10619US	high7.8	2.72% (86th)	Exploit	2018-06-07
An unquoted search path or element in RSLinx Classic Versions 3.90.01 and prior and FactoryTalk Linx Gateway Versions 3.90.00 and prior may allow an authorized, but non-privileged…

+472 weitere

Referenzen (23)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

Kostenloser Scan