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Spam protection, AntiSpam, FireWall by CleanTalk <= 5.127.3 — Reflected Cross-Site Scripting

CVE-2019-17515Published · Updated

Action summary

Affected: ≤5.127.3Update to 5.127.4 or newer

All remediation steps
Watch plugin
Severity
Medium6.1
CVSS
6.1
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:R User interaction
Required
S:C Scope
Changed
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-79 Cross-Site Scripting
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Anti-Spam, Spam FireWall by CleanTalk cleantalk-spam-protect

  1. Affected≤ 5.127.3
  2. Patched in5.127.4

Update to 5.127.4 or newer.

You are affected if you run ≤ 5.127.3. Version 5.127.4 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Anti-Spam, Spam FireWall by CleanTalk.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 5.127.4, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Anti-Spam, Spam FireWall by CleanTalk to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence.

The CleanTalk cleantalk-spam-protect plugin before 5.127.4 for WordPress is affected by: Cross Site Scripting (XSS). The impact is: Allows an attacker to execute arbitrary HTML and JavaScript code via the from or till parameter. The component is: inc/cleantalk-users.php and inc/cleantalk-comments.php. The attack vector is: When the Administrator is logged in, a reflected XSS may execute upon a click on a malicious URL.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Anti-Spam, Spam FireWall by CleanTalk

All 20
More vulnerabilities in Anti-Spam, Spam FireWall by CleanTalk
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting
≤6.90Update to 6.91
CVE-2026-115673
High7.2Unauthenticated Stored Cross-Site Scripting via 'user_email' Registration Parameter
≤6.89.1Update to 6.90
CVE-2026-109198
Medium5.4Unauthenticated Stored Cross-Site Scripting via Comment Content via ContactsEncoder Greedy Regex
≤6.88Update to 6.89
CVE-2026-103424
Medium6.5Unauthenticated Arbitrary Shortcode Execution
<6.87Update to 6.87
CVE-2026-19855
High7.2Unauthenticated Stored Cross-Site Scripting via Comment Content aria-label Placeholder
≤6.86Update to 6.87
CVE-2026-77830

Same weakness (Cross-Site Scripting)

All Cross-Site Scripting
Other Cross-Site Scripting vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 6.1

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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