How severe is CVE-2014-1840?

CVE-2014-1840 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-1840 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-1840?

CVE-2014-1840 primarily affects Mybb. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-1840?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-1840 published?

CVE-2014-1840 was published on 2014-03-03 and last updated on 2026-06-17.

CVE-2014-1840

CVE-2014-1840 is a medium-severity vulnerability in Mybb with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mybb
Published: 2014-03-03
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in Upload/search.php in MyBB 1.6.12 and earlier allows remote attackers to inject arbitrary web script or HTML via the keywords parameter in a do_search action, which is not properly handled in a forced SQL error message.

Frequently asked questions

What is CVE-2014-1840?: Cross-site scripting (XSS) vulnerability in Upload/search.php in MyBB 1.6.12 and earlier allows remote attackers to inject arbitrary web script or HTML via the keywords parameter in a do_search action, which is not properly handled in a forced SQL error message.
How severe is CVE-2014-1840?: CVE-2014-1840 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-1840 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-1840?: CVE-2014-1840 primarily affects Mybb. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-1840?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-1840 published?: CVE-2014-1840 was published on 2014-03-03 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.3:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.4:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.5:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.6:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.7:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.8:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.9:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.10:*:*:*:*:*:*:*
cpe:2.3:a:mybb:mybb:1.6.11:*:*:*:*:*:*:*

More vulnerabilities in Mybb

CVE-2015-8974 — Critical (CVSS 10.0): SQL injection vulnerability in the Group Promotions module in the admin control panel in MyBB (aka MyBulletinBoard)…
CVE-2015-2786 — Critical (CVSS 10.0): Unspecified vulnerability in MyBB (aka MyBulletinBoard) before 1.8.4 has unknown attack vectors related to "Group join…
CVE-2011-5133 — Critical (CVSS 10.0): Unspecified vulnerability in MyBB before 1.6.5 has unknown impact and attack vectors, related to an "unparsed user…
CVE-2006-0218 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in MyBulletinBoard (MyBB) before 1.0.2 have unspecified impact and attack vectors,…
CVE-2011-10018 — Critical (CVSS 9.8): myBB version 1.6.4 was distributed with an unauthorized backdoor embedded in the source code. The backdoor allowed…
CVE-2020-22612 — Critical (CVSS 9.8): Installer RCE on settings file write in MyBB before 1.8.22.

All CVEs affecting Mybb →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →