← Vulnerability feed

Vulnerability record · CVE-2021-20746 · published 28 June 2021

CVE-2021-20746: Wordpress popular posts project wordpress popular posts cross-site scripting vulnerability

WWordpress Popular Posts Project · Wordpress Popular Posts

Cross-site scripting vulnerability in WordPress Popular Posts 5.3.2 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

5.4 CVSS 3.1 Medium EPSS 1.4% · top 27.8% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

Cross-site scripting vulnerability in WordPress Popular Posts 5.3.2 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

CVSS:3.1/AV:N/AC:L/PR:L/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

Track CVE-2021-20746 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

8.8CVE-2021-42362WordPress Popular Posts plugin unrestricted file upload allows RCEThe WordPress Popular Posts plugin fails to properly validate uploaded file types in src/Image.php, allowing files with dangerous extensions to be st…EPSS 80%analysed7.5CVE-2022-43468Wordpress popular posts project wordpress popular posts vulnerabilityExternal initialization of trusted variables or data stores vulnerability exists in WordPress Popular Posts 6.0.5 and earlier, therefore the vulnerab…EPSS 0.89%5.4CVE-2023-45607Wordpress popular posts project wordpress popular posts cross-site scripting vulnerabilityAuth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in Hector Cabrera WordPress Popular Posts plugin <= 6.3.2 versions.EPSS 0.34%5.4CVE-2021-36872Wordpress popular posts project wordpress popular posts cross-site scripting vulnerabilityAuthenticated Persistent Cross-Site Scripting (XSS) vulnerability in WordPress Popular Posts plugin (versions <= 5.3.3). Vulnerable at &widget-wpp[2]…EPSS 0.59%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed6.1CVE-2025-48700Zimbra Classic UI stored XSS via crafted email HTMLZimbra Collaboration Suite Classic UI fails to properly sanitize HTML content in email messages, allowing crafted tag structures and attribute values…KEVEPSS 1.7%analysed6.1CVE-2025-66376Zimbra Collaboration Classic UI stored XSS via CSS @import in emailZimbra Collaboration Suite 10 before 10.0.18 and 10.1 before 10.1.13 allows stored cross-site scripting in the Classic UI through CSS @import directi…KEVEPSS 20%analysed6.1CVE-2025-68461Roundcube Webmail XSS via SVG animate tagRoundcube Webmail before 1.5.12 and 1.6 before 1.6.12 is vulnerable to cross-site scripting through the animate tag in an SVG document. Because the f…KEVEPSS 27%analysed

Source: NIST National Vulnerability Database (record CVE-2021-20746), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.