CVE-2021-25117: wp-postratings CSRF — Exploit

Description

The WP-PostRatings WordPress plugin before 1.86.1 does not sanitise the postratings_image parameter from its options page (wp-admin/admin.php?page=wp-postratings/postratings-options.php). Even though the page is only accessible to administrators, and protected against CSRF attacks, the issue is still exploitable when the unfiltered_html capability is disabled.

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CVSS v3.1 Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-352 Cross-Site Request Forgery

Affected Products

Vendor	Product	Versions
lesterchan	wp-postratings	< 1.86.1

References

Exploits

https://wpscan.com/vulnerability/d2d9a789-edae-4ae1-92af-e6132db7efcd/ https://wpscan.com/vulnerability/d2d9a789-edae-4ae1-92af-e6132db7efcd/

Frequently Asked Questions

What is CVE-2021-25117? +

The WP-PostRatings WordPress plugin before 1.86.1 does not sanitise the postratings_image parameter from its options page (wp-admin/admin.php?page=wp-postratings/postratings-options.php). Even though the page is only accessible to administrators, and protected against CSRF attacks, the issue is still exploitable when the unfiltered_html capability is disabled. It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2021-25117? +

CVE-2021-25117 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2021-25117? +

CVE-2021-25117 affects products from lesterchan, specifically: wp-postratings. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-25117? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2021-25117