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WordPress plugin

Multiple Plugins by KlbTheme <= (Various Versions) — Reflected Cross-Site Scripting

CVE-2023-49839Published · Updated

Action summary

Cosmetsy Core: Affected: ≤1.3.0No patch available

Parto Core: Affected: ≤1.0.9No patch available

Medibazar Core: Affected: ≤1.2.3No patch available

Bacola Core: Affected: ≤1.3.3No patch available

Clotya Core: Affected: ≤1.1.5No patch available

Furnob Core: Affected: ≤1.1.7No patch available

What to do until a fix ships
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?

Cosmetsy Core cosmetsy-core

  1. Affected≤ 1.3.0
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.3.0. No fixed version has been released.

Parto Core partdo-core

  1. Affected≤ 1.0.9
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.0.9. No fixed version has been released.

Medibazar Core medibazar-core

  1. Affected≤ 1.2.3
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.2.3. No fixed version has been released.

Bacola Core bacola-core

  1. Affected≤ 1.3.3
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.3.3. No fixed version has been released.

Clotya Core clotya-core

  1. Affected≤ 1.1.5
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.1.5. No fixed version has been released.

Furnob Core furnob-core

  1. Affected≤ 1.1.7
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 1.1.7. No fixed version has been released.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Cosmetsy Core.
  • 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. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  2. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  3. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  4. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  5. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  6. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  7. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  8. Watch Cosmetsy Core to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to R3N0.

Multiple plugins for WordPress by KlbTheme are vulnerable to Reflected Cross-Site Scripting in various versions due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

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. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. 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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