CVE-2021-23420 is a critical deserialization vulnerability affecting codeception/codeception versions 4.0.0 through 4.1.21 and versions before 3.1.3. An unauthenticated attacker can exploit this by sending specially crafted serialized user input, allowing arbitrary command execution on the vulnerable system. With a CVSS score of 9.8, this vulnerability poses a severe risk of complete compromise (confidentiality, integrity, and availability). While no active exploitation or public exploit code has been identified, and community discussion is minimal, its critical nature warrants immediate patching.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.1.3CPE matchmatch criteria | cpe:2.3:a:codeception:codeception:*:*:*:*:*:*:*:* | ||
>= 4.0.0, < 4.1.22CPE matchmatch criteria | cpe:2.3:a:codeception:codeception:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.