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CVE-2023-22909

20
FAUCET Score

CVE-2023-22909 is a denial-of-service vulnerability affecting MediaWiki versions before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1, including Fedora Project distributions. The vulnerability allows remote attackers to degrade system performance by triggering slow database queries through the SpecialMobileHistory feature. Rated as Medium severity (CVSS 5.3), it requires no user interaction or privileges and can be exploited over the network, leading to a low impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.35.9CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
>= 1.36.0, < 1.38.5CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
1.39.0CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.39.0:-:*:*:*:*:*:*
1.39.0CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.39.0:rc0:*:*:*:*:*:*
1.39.0CPE matchmatch criteria
cpe:2.3:a:mediawiki:mediawiki:1.39.0:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 34th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2023-22909Moderate

MediaWiki: Remote DoS

Jan 10, 2023

References

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/AP65YEN762IBNQPOYGUVLTQIDLM5XD2A
phabricator.wikimedia.org / T320987
Issue TrackingPatchVendor Advisory