Mybb
by MyBB
Source repositories
CVEs (183)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2011-10018 | Cri | 0.67 | 9.8 | 0.02 | Aug 13, 2025 | myBB version 1.6.4 was distributed with an unauthorized backdoor embedded in the source code. The backdoor allowed remote attackers to execute arbitrary PHP code by injecting payloads into a specially crafted collapsed cookie. This vulnerability was introduced during packaging… | ||
| CVE-2017-16780 | Cri | 0.67 | 9.8 | 0.06 | Nov 10, 2017 | The installer in MyBB before 1.8.13 allows remote attackers to execute arbitrary code by writing to the configuration file. | ||
| CVE-2015-8974 | Cri | 0.65 | 10.0 | 0.02 | Jan 31, 2017 | SQL injection vulnerability in the Group Promotions module in the admin control panel in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to execute arbitrary SQL commands via unspecified vectors. | ||
| CVE-2020-22612 | Cri | 0.64 | 9.8 | 0.01 | Sep 1, 2023 | Installer RCE on settings file write in MyBB before 1.8.22. | ||
| CVE-2016-9420 | Cri | 0.64 | 9.8 | 0.03 | Jan 31, 2017 | MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allow remote attackers to have unspecified impact via vectors related to "loose comparison false positives." | ||
| CVE-2016-9416 | Cri | 0.64 | 9.8 | 0.02 | Jan 31, 2017 | SQL injection vulnerability in the users data handler in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allows remote attackers to execute arbitrary SQL commands via unspecified vectors. | ||
| CVE-2016-9412 | Cri | 0.64 | 9.8 | 0.02 | Jan 31, 2017 | MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allow attackers to have unspecified impact via vectors related to low adminsid and sid entropy. | ||
| CVE-2016-9403 | Cri | 0.64 | 9.8 | 0.03 | Jan 31, 2017 | newreply.php in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allows remote attackers to have unspecified impact by leveraging a missing permission check. | ||
| CVE-2016-9402 | Cri | 0.64 | 9.8 | 0.02 | Jan 31, 2017 | SQL injection vulnerability in the moderation tool in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to execute arbitrary SQL commands via unspecified vectors. | ||
| CVE-2021-27946 | Hig | 0.61 | 8.8 | 0.04 | Mar 15, 2021 | SQL Injection vulnerability in MyBB before 1.8.26 via poll vote count. (issue 1 of 3). | ||
| CVE-2021-27890 | Hig | 0.61 | 8.8 | 0.11 | Mar 15, 2021 | SQL Injection vulnerablity in MyBB before 1.8.26 via theme properties included in theme XML files. | ||
| CVE-2023-53979 | Hig | 0.57 | 8.8 | 0.01 | Dec 22, 2025 | MyBB 1.8.32 contains a chained vulnerability that allows authenticated administrators to bypass avatar upload restrictions and execute arbitrary code. Attackers can modify upload path settings, upload a malicious PHP-embedded image file, and execute commands through the language… | ||
| CVE-2019-12830 | Hig | 0.57 | 8.7 | 0.01 | Jun 15, 2019 | In MyBB before 1.8.21, an attacker can exploit a parsing flaw in the Private Message / Post renderer that leads to [video] BBCode persistent XSS to take over any forum account, aka a nested video MyCode issue. | ||
| CVE-2015-8973 | Hig | 0.54 | 8.3 | 0.02 | Jan 31, 2017 | xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to bypass intended access restrictions via vectors related to the forum password. | ||
| CVE-2017-7566 | Hig | 0.50 | 7.7 | 0.02 | Apr 6, 2017 | MyBB before 1.8.11 allows remote attackers to bypass an SSRF protection mechanism. | ||
| CVE-2025-29460 | Hig | 0.49 | 7.6 | 0.00 | Apr 17, 2025 | An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Add Mycode function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation. | ||
| CVE-2025-29459 | Hig | 0.49 | 7.6 | 0.00 | Apr 17, 2025 | An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Mail function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation. | ||
| CVE-2025-29458 | Hig | 0.49 | 7.6 | 0.00 | Apr 17, 2025 | An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Change Avatar function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation. | ||
| CVE-2025-29457 | Hig | 0.49 | 7.6 | 0.00 | Apr 17, 2025 | An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Import a Theme function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation. | ||
| CVE-2022-24734 | Hig | 0.49 | 7.2 | 0.78 | Mar 9, 2022 | MyBB is a free and open source forum software. In affected versions the Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type `php` with PHP code, executed on on _Change… |
- risk 0.67cvss 9.8epss 0.02
myBB version 1.6.4 was distributed with an unauthorized backdoor embedded in the source code. The backdoor allowed remote attackers to execute arbitrary PHP code by injecting payloads into a specially crafted collapsed cookie. This vulnerability was introduced during packaging…
- risk 0.67cvss 9.8epss 0.06
The installer in MyBB before 1.8.13 allows remote attackers to execute arbitrary code by writing to the configuration file.
- risk 0.65cvss 10.0epss 0.02
SQL injection vulnerability in the Group Promotions module in the admin control panel in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
- risk 0.64cvss 9.8epss 0.01
Installer RCE on settings file write in MyBB before 1.8.22.
- risk 0.64cvss 9.8epss 0.03
MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allow remote attackers to have unspecified impact via vectors related to "loose comparison false positives."
- risk 0.64cvss 9.8epss 0.02
SQL injection vulnerability in the users data handler in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
- risk 0.64cvss 9.8epss 0.02
MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allow attackers to have unspecified impact via vectors related to low adminsid and sid entropy.
- risk 0.64cvss 9.8epss 0.03
newreply.php in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allows remote attackers to have unspecified impact by leveraging a missing permission check.
- risk 0.64cvss 9.8epss 0.02
SQL injection vulnerability in the moderation tool in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to execute arbitrary SQL commands via unspecified vectors.
- risk 0.61cvss 8.8epss 0.04
SQL Injection vulnerability in MyBB before 1.8.26 via poll vote count. (issue 1 of 3).
- risk 0.61cvss 8.8epss 0.11
SQL Injection vulnerablity in MyBB before 1.8.26 via theme properties included in theme XML files.
- risk 0.57cvss 8.8epss 0.01
MyBB 1.8.32 contains a chained vulnerability that allows authenticated administrators to bypass avatar upload restrictions and execute arbitrary code. Attackers can modify upload path settings, upload a malicious PHP-embedded image file, and execute commands through the language…
- risk 0.57cvss 8.7epss 0.01
In MyBB before 1.8.21, an attacker can exploit a parsing flaw in the Private Message / Post renderer that leads to [video] BBCode persistent XSS to take over any forum account, aka a nested video MyCode issue.
- risk 0.54cvss 8.3epss 0.02
xmlhttp.php in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 allows remote attackers to bypass intended access restrictions via vectors related to the forum password.
- risk 0.50cvss 7.7epss 0.02
MyBB before 1.8.11 allows remote attackers to bypass an SSRF protection mechanism.
- risk 0.49cvss 7.6epss 0.00
An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Add Mycode function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation.
- risk 0.49cvss 7.6epss 0.00
An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Mail function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation.
- risk 0.49cvss 7.6epss 0.00
An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Change Avatar function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation.
- risk 0.49cvss 7.6epss 0.00
An issue in MyBB 1.8.38 allows a remote attacker to obtain sensitive information via the Import a Theme function. NOTE: the Supplier disputes this because of the allowed actions of Board administrators and because of SSRF mitigation.
- risk 0.49cvss 7.2epss 0.78
MyBB is a free and open source forum software. In affected versions the Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type `php` with PHP code, executed on on _Change…
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