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Vulnerability record · CVE-2022-1252 · published 11 April 2022

CVE-2022-1252: Sir gnuboard broken cryptographic algorithm vulnerability

Sir · Gnuboard

Use of a Broken or Risky Cryptographic Algorithm in GitHub repository gnuboard/gnuboard5 prior to and including 5.5.5. A vulnerability in gnuboard v5.5.5 and below uses weak encryption algorithms leading to sensitive information exposure. This allows an attacker to derive the email address of any user, including when the 'Let others see my information.' box is ticked off. Or to send emails to any email address, with full control of its contents

9.1 CVSS 3.1 Critical EPSS 0.55% · top 56.4% CWE-327 · Broken cryptographic algorithm
9.1CVSS 3.1 base score, v2 6.4
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

Use of a Broken or Risky Cryptographic Algorithm in GitHub repository gnuboard/gnuboard5 prior to and including 5.5.5. A vulnerability in gnuboard v5.5.5 and below uses weak encryption algorithms leading to sensitive information exposure. This allows an attacker to derive the email address of any user, including when the 'Let others see my information.' box is ticked off. Or to send emails to any email address, with full control of its contents

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://0g.vc/posts/insecure-cipher-gnuboard5/ ExploitThird Party Advisory
https://huntr.dev/bounties/c8c2c3e1-67d0-4a11-a4d4-11af567a9ebb ExploitThird Party Advisory
https://0g.vc/posts/insecure-cipher-gnuboard5/ ExploitThird Party Advisory
https://huntr.dev/bounties/c8c2c3e1-67d0-4a11-a4d4-11af567a9ebb ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-18662Sir gnuboard sql injection vulnerabilitySQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.EPSS 5.4%9.8CVE-2005-0269Sir gnuboard vulnerabilityThe file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all lowercase letters, which allows remote attackers to u…EPSS 2.6%8.8CVE-2024-41475Sir gnuboard origin validation error vulnerabilityGnuboard g6 6.0.7 is vulnerable to Session hijacking due to a CORS misconfiguration.EPSS 0.30%7.5CVE-2022-44216Sir gnuboard missing authentication for critical function vulnerabilityGnuboard 5.5.4 and 5.5.5 is vulnerable to Insecure Permissions. An attacker can change password of all users without knowing victim's original passwo…EPSS 0.67%7.5CVE-2011-4066Sir gnuboard sql injection vulnerabilitySQL injection vulnerability in bbs/tb.php in Gnuboard 4.33.02 and earlier allows remote attackers to execute arbitrary SQL commands via the PATH_INFO.EPSS 1.6%7.5CVE-2004-1403Sir gnuboard vulnerabilityPHP remote file inclusion vulnerability in index.php in GNUBoard 3.39 and earlier allows remote attackers to execute arbitrary PHP code by modifying …EPSS 1.7%6.8CVE-2009-0290Sir gnuboard path traversal vulnerabilityDirectory traversal vulnerability in common.php in SIR GNUBoard 4.31.03 allows remote attackers to include and execute arbitrary local files via a ..…EPSS 3.3%6.5CVE-2025-61464Sir gnuboard sql injection vulnerabilitygnuboard gnuboard4 v4.36.04 and before is vulnerable to Second-order SQL Injection via the search_table in bbs/search.php.EPSS 0.23%

Source: NIST National Vulnerability Database (record CVE-2022-1252), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.