CVE-2022-4891 is a problematic vulnerability affecting Sisimai versions up to 4.25.14p11, specifically within the to_plain function of lib/sisimai/string.rb. This flaw, categorized as inefficient regular expression complexity (CWE-1333), allows for a denial-of-service attack. With a CVSS score of 7.5 (High), it can be exploited remotely with low attack complexity and no user interaction, leading to high availability impact. While the exploit has been publicly disclosed, there is no evidence of active exploitation, nor are there Metasploit, Nuclei, or ExploitDB modules available, and community discussion remains minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.25.14CPE matchmatch criteria | cpe:2.3:a:libsisimai:sisimai:*:*:*:*:*:*:*:* | ||
4.25.14CPE matchmatch criteria | cpe:2.3:a:libsisimai:sisimai:4.25.14:-:*:*:*:*:*:* | ||
4.25.14CPE matchmatch criteria | cpe:2.3:a:libsisimai:sisimai:4.25.14:p1:*:*:*:*:*:* | ||
4.25.14CPE matchmatch criteria | cpe:2.3:a:libsisimai:sisimai:4.25.14:p10:*:*:*:*:*:* | ||
4.25.14CPE matchmatch criteria | cpe:2.3:a:libsisimai:sisimai:4.25.14:p11:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.