CVE-2021-3337 describes an information disclosure vulnerability in the MyBB Hide-Thread-Content plugin, affecting versions through 2021-01-27. This flaw allows remote attackers to bypass content restrictions by utilizing the reply or quote functions within a postbit. With a CVSS score of 7.5 (High), it presents a significant risk due to its network-based attack vector and low attack complexity, potentially leading to unauthorized disclosure of sensitive information. While not listed in CISA's KEV catalog, an ExploitDB entry (EDB-49496) confirms the availability of exploit code, though there is no evidence of active exploitation, Metasploit/Nuclei modules, or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.0CPE matchmatch criteria | cpe:2.3:a:hide_thread_content_project:hide_thread_content:1.0:*:*:*:*:mybb:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
Remediation records are not available for this CVE.