CVE-2014-5345

CVE-2014-5345 is a medium-severity vulnerability in Disqus Disqus Comment System 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: 6% (93rd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-79
• Affected product: Disqus Disqus Comment System
• Published: 2014-08-19
• Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in upgrade.php in the Disqus Comment System plugin before 2.76 for WordPress allows remote attackers to inject arbitrary web script or HTML via the step parameter.

Frequently asked questions

What is CVE-2014-5345?

Cross-site scripting (XSS) vulnerability in upgrade.php in the Disqus Comment System plugin before 2.76 for WordPress allows remote attackers to inject arbitrary web script or HTML via the step parameter.

How severe is CVE-2014-5345?

CVE-2014-5345 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-5345 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-5345?

CVE-2014-5345 primarily affects Disqus Disqus Comment System. In total, 32 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-5345?

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

When was CVE-2014-5345 published?

CVE-2014-5345 was published on 2014-08-19 and last updated on 2026-06-17.

References

• http://packetstormsecurity.com/files/127847/WordPress-Disqus-2.7.5-CSRF-Cross-Site-Scripting.html
• http://seclists.org/fulldisclosure/2014/Aug/35
• http://www.securityfocus.com/bid/69205
• https://wordpress.org/plugins/disqus-comment-system/other_notes
• https://www.nikcub.com/posts/multiple-vulnerabilities-in-disqus-wordpress-plugin

Affected products (32)

• cpe:2.3:a:disqus:disqus_comment_system:*:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.40:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.41:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.42:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.43:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.44:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.45:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.46:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.47:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.48:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.49:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.50:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.51:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.52:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.53:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.54:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.55:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.60:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.61:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.62:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.63:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.64:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.65:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.66:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.67:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.68:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.69:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.70:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.71:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.72:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.73:*:*:*:*:wordpress:*:*
• cpe:2.3:a:disqus:disqus_comment_system:2.74:*:*:*:*:wordpress:*:*

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