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Vulnerability record · CVE-2025-5528 · published 7 June 2025

CVE-2025-5528: Heateor sassy social share cross-site scripting vulnerability

HHeateor · Sassy Social Share

The Social Sharing Plugin – Sassy Social Share plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the heateor_mastodon_share parameter in all versions up to, and including, 3.3.75 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action, such as clicking on a link.

6.1 CVSS 3.1 Medium EPSS 0.24% · top 86.8% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The Social Sharing Plugin – Sassy Social Share plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the heateor_mastodon_share parameter in all versions up to, and including, 3.3.75 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action, such as clicking on a link.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://plugins.trac.wordpress.org/browser/sassy-social-share/tags/3.3.75/public/class-sassy-social-share-public.php#L14 Product
https://www.wordfence.com/threat-intel/vulnerabilities/id/99e922ec-d40a-47e7-a10f-d966a351d182?source=cve Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2021-39321Heateor sassy social share deserialization of untrusted data vulnerabilityVersion 3.3.23 of the Sassy Social Share WordPress plugin is vulnerable to PHP Object Injection via the wp_ajax_heateor_sss_import_config AJAX action…EPSS 2.0%6.4CVE-2024-1448Heateor sassy social share cross-site scripting vulnerabilityThe Social Sharing Plugin – Sassy Social Share plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all…EPSS 0.47%6.1CVE-2024-11252Heateor sassy social share cross-site scripting vulnerabilityThe Social Sharing Plugin – Sassy Social Share plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the heateor_mastodon_share pa…EPSS 0.90%6.1CVE-2022-4971Heateor sassy social share cross-site scripting vulnerabilityThe Sassy Social Share plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'urls' parameter called via the 'heateor_sss_shar…EPSS 17%6.1CVE-2024-4924Heateor sassy social share cross-site scripting vulnerabilityThe Social Sharing Plugin WordPress plugin before 3.3.63 does not sanitise and escape some of its settings, which could allow high privilege users su…EPSS 0.46%6.1CVE-2021-24746Heateor sassy social share cross-site scripting vulnerabilityThe Social Sharing Plugin WordPress plugin before 3.3.40 does not escape the viewed post URL before outputting it back in onclick attributes when the…EPSS 2.2%5.4CVE-2024-1989Heateor sassy social share cross-site scripting vulnerabilityThe Social Sharing Plugin – Sassy Social Share plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'Sassy_Social_Share…EPSS 0.51%5.4CVE-2022-4451Heateor sassy social share vulnerabilityThe Social Sharing WordPress plugin before 3.3.45 does not validate and escape some of its shortcode attributes before outputting them back in the pa…EPSS 0.47%

Source: NIST National Vulnerability Database (record CVE-2025-5528), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.