Unauthenticated DOM-based script execution
Published May 27, 2026 · Updated May 27, 2026
DOM-based XSS in RealMag777 WPCS 1.3.1 and earlier allows remote attackers to execute script in a visitor's browser via crafted input. The CNA and vendor advisory do not identify the affected JavaScript locus or disclose how attacker-controlled data reaches an unsafe DOM sink. Exploitation requires user interaction with attacker-controlled content, and successful script execution is confined to that visitor's browser context.
Summary
What happened
DOM-based XSS in RealMag777 WPCS 1.3.1 and earlier allows remote attackers to execute script in a visitor's browser via crafted input. The CNA and vendor advisory do not identify the affected JavaScript locus or disclose how attacker-controlled data reaches an unsafe DOM sink. Exploitation requires user interaction with attacker-controlled content, and successful script execution is confined to that visitor's browser context.
The record
- CVE
- CVE-2026-42733
- Published
- May 27, 2026
- Updated
- May 27, 2026
- Vendor
- PluginUs.Net
- Product
- WPCS – WordPress Currency Switcher Professional
- Classifications
- CWE-79, CAPEC-588, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 27, 2026CVE publishedPublication date reported by the CVE source.
- May 27, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=1.3.1 changes=[{"at":"1.3.2","status":"unaffected"}]
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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