CVE-2021-34637

Post Index <= 0.7.5 Cross-Site Request Forgery to Stored Cross-Site Scripting

HIGH

8.8

CVSS Score

Published: August 2, 2021 at 08:39 PM UTC

Updated: June 17, 2026 at 03:56 AM UTC

2 products affected across 2 vendorsPost IndexPost Index

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Severity

HIGH8.8

Exploit prediction

EPSS 0.7%

Description

The Post Index WordPress plugin is vulnerable to Cross-Site Request Forgery via the OptionsPage function found in the ~/php/settings.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.5.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Post Index · Post Index Projectwordpress-plugin

95%

v ≤ 0.7.5

Post Index · Ituxwordpress-plugin

60%

0.7.5

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCExploitThird Party Advisory

Source: [email protected]

https://plugins.trac.wordpress.org/browser/post-index/trunk/php/settings.php#L86

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34637

CVSS

8.8HIGHWordfence

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-352

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