Webkitgtk vulnerabilities & exploitation

Exploitation timeline

Threadlinqs has recorded 7 Webkitgtk CVEs published between 2021-08-15 and 2023-11-15. The busiest month was 2023-06 (2 new CVEs). 7 of them (100%) are listed in CISA KEV, which means exploitation in the wild has been confirmed.

Most exploited vulnerabilities

Ranked with CISA KEV listings first, then EPSS exploit probability, then CVSS score. Showing 7 of 7 tracked Webkitgtk CVEs.

• CVE-2023-41993high 8.8KEVEPSS 24.4%2023-09-21
• CVE-2021-30952high 7.8KEVEPSS 1.2%2021-08-24
• CVE-2023-28204medium 6.5KEVEPSS 0.1%2023-06-23
• CVE-2023-42917high 8.8KEVEPSS 0.1%2023-11-30
• CVE-2023-37450high 8.8KEVEPSS 0.1%2023-07-27
• CVE-2023-42916medium 6.5KEVEPSS 0%2023-11-30
• CVE-2023-32373high 8.8KEVEPSS 0%2023-06-23

Products affected

Threadlinqs normalises CPE and CNA product records across all 7 CVEs; 2 distinct Webkitgtk products are affected. The most frequently affected:

• Webkitgtk+ 6 CVEs
• Webkitgtk 1 CVE

Threat activity

2 tracked threat campaigns reference Webkitgtk products or exploit Webkitgtk CVEs:

• Hack-for-Hire Espionage Campaign Targeting MENA Civil Society via Predator/Intellexa Mercenary SpywareHIGH2026-04-08
• Coruna iOS Exploit Kit — 23 Exploits Across 5 Chains Targeting iOS 13-17.2.1 (CVE-2021-30952, CVE-2023-41974, CVE-2023-43000 + 20 More)CRITICAL2026-03-06

Threat actors targeting Webkitgtk

Named threat actors attributed to campaigns that involve Webkitgtk products or CVEs, with the number of linked campaigns:

• Cytrox 1
• UNC6353 1
• UNC6691 1

How to prioritise Webkitgtk patching

This order follows the data Threadlinqs holds for Webkitgtk, not a generic severity checklist:

• 7 of 7 Webkitgtk CVEs (100%) are in CISA KEV: treat them as actively exploited and remediate them first, starting with CVE-2023-41993, CVE-2021-30952, CVE-2023-28204.
• 0 CVEs score Critical and 5 High on CVSS v3 (maximum 8.8, average 8); sequence these after KEV and high-EPSS items.

About this data

Vendor attribution comes from the CNA and CPE product records of each CVE, folded to one vendor name; CVSS, EPSS and KEV status are read from the Threadlinqs CVE catalog; campaign and actor links come from tracked threat records. Counts reflect the data as of 2026-10-05 and refresh daily.