CVE-2021-43099 is an Archive Extraction (Zip Slip) vulnerability affecting diyhi bbs 5.3, specifically within the UpgradeNow function. An authenticated attacker can upload a specially crafted zip file containing directory traversal filenames, leading to arbitrary file overwrite. While the CVSS score is 4.9 (Medium) due to requiring high privileges, it allows for high integrity impact. There is currently no public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.3CPE matchmatch criteria | cpe:2.3:a:diyhi:bbs:5.3:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.