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Vulnerabilities

Vulnerability · CVE-2025-8877

The AffiliateWP plugin for WordPress is vulnerable to SQL Injection via the ajax_get_affiliate_id_from_login function in all versions up to, and including, 2.28.2 due to insufficie

Published Sep 30, 2025 · catalog updated Apr 8, 2026 · AffiliateWP AffiliateWP

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-8877. EPSS is 0.36%. Act only if a listed version of AffiliateWP AffiliateWP is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.36%
Remediation
Vendor / distro source
Affected products
vendor AffiliateWP AffiliateWP 0 ≤2.28.2

The AffiliateWP plugin for WordPress is vulnerable to SQL Injection via the ajax_get_affiliate_id_from_login function in all versions up to, and including, 2.28.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor AffiliateWP AffiliateWP 0 ≤2.28.20 ≤2.28.2

How to fix CVE-2025-8877

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-8877. EPSS is 0.36%. Act only if a listed version of AffiliateWP AffiliateWP is installed.

Which versions are affected?

Compare what you have installed with AffiliateWP AffiliateWP 0 ≤2.28.2 0 ≤2.28.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.36%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 30, 2025 · EUVD

    Detected

    The AffiliateWP plugin for WordPress is vulnerable to SQL Injection via the ajax_get_affiliate_id_from_login function in all versions up to, and including, 2.28.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries

  2. Apr 8, 2026 · EUVD

    Updated

    The AffiliateWP plugin for WordPress is vulnerable to SQL Injection via the ajax_get_affiliate_id_from_login function in all versions up to, and including, 2.28.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries

Sources

  • CVE.orgVulnerability recordCVE-2025-8877

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-8877

    30-day exploitation probability 0.36%

    first.org
  • EUVDVulnerability recordEUVD-2025-31707

    The AffiliateWP plugin for WordPress is vulnerable to SQL Injection via the ajax_get_affiliate_id_from_login function in all versions up to, and including, 2.28.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL qu

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 23, 2026
  • FIRST EPSSOct 23, 2026
  • EUVDOct 22, 2026