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Vulnerabilities

Vulnerability · CVE-2026-1097

The ThemeRuby Multi Authors – Assign Multiple Writers to Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before' and 'after' shortcode attributes i

Published Jan 24, 2026 · catalog updated Apr 8, 2026 · ThemeRuby ThemeRuby Multi Authors – Assign Multiple Writers to Posts

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-1097. EPSS is 0.26%. Act only if a listed version of ThemeRuby ThemeRuby Multi Authors – Assign Multiple Writers to Posts is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.26%
Remediation
Vendor / distro source
Affected products
vendor ThemeRuby ThemeRuby Multi Authors – Assign Multiple Writers to Posts 0 ≤1.0.0

The ThemeRuby Multi Authors – Assign Multiple Writers to Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before' and 'after' shortcode attributes in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. 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.

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 ThemeRuby ThemeRuby Multi Authors – Assign Multiple Writers to Posts 0 ≤1.0.00 ≤1.0.0

How to fix CVE-2026-1097

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-2026-1097. EPSS is 0.26%. Act only if a listed version of ThemeRuby ThemeRuby Multi Authors – Assign Multiple Writers to Posts is installed.

Which versions are affected?

Compare what you have installed with ThemeRuby ThemeRuby Multi Authors – Assign Multiple Writers to Posts 0 ≤1.0.0 0 ≤1.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.26%. 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.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 24, 2026 · EUVD

    Detected

    The ThemeRuby Multi Authors – Assign Multiple Writers to Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before' and 'after' shortcode attributes in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web

  2. Apr 8, 2026 · EUVD

    Updated

    The ThemeRuby Multi Authors – Assign Multiple Writers to Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before' and 'after' shortcode attributes in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web

Sources

  • CVE.orgVulnerability recordCVE-2026-1097

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-1097

    30-day exploitation probability 0.26%

    first.org
  • EUVDVulnerability recordEUVD-2026-4564

    The ThemeRuby Multi Authors – Assign Multiple Writers to Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before' and 'after' shortcode attributes in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escapin

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 2, 2026