CVE-2025-6257: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in joostdekeijzer Euro FxRef Currency Converter (by DKZR)
The Euro FxRef Currency Converter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's currency shortcode in all versions up to, and including, 2.0.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Analysis
Technical Summary
CVE-2025-6257 is a stored cross-site scripting vulnerability in the Euro FxRef Currency Converter plugin for WordPress, affecting all versions up to 2.0.2. The issue arises from improper neutralization of input during web page generation, specifically insufficient sanitization and escaping of user-supplied attributes in the plugin's currency shortcode. This allows authenticated attackers with contributor-level privileges or higher to inject arbitrary web scripts that execute in the context of users visiting the compromised pages. The vulnerability has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, and partial impact on confidentiality and integrity with no impact on availability.
Potential Impact
Successful exploitation allows authenticated users with contributor or higher privileges to inject persistent malicious scripts into pages via the currency shortcode. These scripts execute in the browsers of users viewing the injected pages, potentially leading to partial confidentiality and integrity compromise within the affected site context. There is no indication of availability impact. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access and above to trusted users only. Consider disabling or removing the Euro FxRef Currency Converter plugin if not essential. Monitor for updates from the plugin vendor or WordPress plugin repository for a security patch.
CVE-2025-6257: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in joostdekeijzer Euro FxRef Currency Converter (by DKZR)
Description
The Euro FxRef Currency Converter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's currency shortcode in all versions up to, and including, 2.0.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-6257 is a stored cross-site scripting vulnerability in the Euro FxRef Currency Converter plugin for WordPress, affecting all versions up to 2.0.2. The issue arises from improper neutralization of input during web page generation, specifically insufficient sanitization and escaping of user-supplied attributes in the plugin's currency shortcode. This allows authenticated attackers with contributor-level privileges or higher to inject arbitrary web scripts that execute in the context of users visiting the compromised pages. The vulnerability has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, and partial impact on confidentiality and integrity with no impact on availability.
Potential Impact
Successful exploitation allows authenticated users with contributor or higher privileges to inject persistent malicious scripts into pages via the currency shortcode. These scripts execute in the browsers of users viewing the injected pages, potentially leading to partial confidentiality and integrity compromise within the affected site context. There is no indication of availability impact. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access and above to trusted users only. Consider disabling or removing the Euro FxRef Currency Converter plugin if not essential. Monitor for updates from the plugin vendor or WordPress plugin repository for a security patch.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-06-18T21:52:34.226Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 68551c787ff74dad36a1f0ac
Added to database: 6/20/2025, 8:31:52 AM
Last enriched: 4/9/2026, 10:37:25 AM
Last updated: 5/8/2026, 7:39:57 PM
Views: 108
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.