CVE-2019-16528

An issue was discovered in the AbuseFilter extension for MediaWiki. includes/special...

7.5 High

An issue was discovered in the AbuseFilter extension for MediaWiki. includes/special/SpecialAbuseLog.php allows attackers to obtain sensitive information, such as deleted/suppressed usernames and summaries, from AbuseLog revision data. This affects REL1_32 and REL1_33.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

1.32%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Record: CVE-2019-16528
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-532
Updated: 2026-11-02

CVE List No score

Record: CVE-2019-16528
Updated: 2026-11-02

EUVDEUVD-2019-7203 No score

Record: EUVD-2019-7203
Updated: 2026-11-03

GitHub AdvisoriesGHSA-627p-f6p8-67f5 No score

An issue was discovered in the AbuseFilter extension for MediaWiki. includes/special...

Record: GHSA-627p-f6p8-67f5
Weakness: CWE-200
Updated: 2026-11-02

OSV 7.5

Record: CVE-2019-16528
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

Affected products

mediawiki abusefilter

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-16528 is a high vulnerability (CVSS 7.5) in Mediawiki Abusefilter, published March 20, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.32%, the 70th percentile. No source names a fixed version.