CVE-2022-2219
Published: 25 July 2022
Summary
CVE-2022-2219 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Brizy Unyson. Its CVSS base score is 7.2 (High).
Operationally, ranked in the top 9.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The Unyson WordPress plugin before version 2.7.27 is affected by a reflected cross-site scripting vulnerability (CWE-79). The root cause is insufficient sanitization and escaping of an unspecified parameter that is later reflected back into HTML output served to visitors.
An unauthenticated attacker can supply a crafted request that triggers script execution in the context of any user who follows the resulting link. Successful exploitation yields limited impacts on confidentiality and integrity with changed scope, consistent with the CVSS 7.2 rating that reflects network attack vector, low complexity, and no required privileges or user interaction on the attacker side.
The referenced WPScan advisory identifies the flaw and indicates that updating to Unyson 2.7.27 or later resolves the issue. The associated EPSS score rose from low values to a peak of 0.1657 on 2025-12-11 before receding to the current 0.0580, indicating a period of increased exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-34499
Vulnerability details
The Unyson WordPress plugin before 2.7.27 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.