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CVE-2026-93767

Status: DeferredMedium (6.5)—
Severity6.5Medium · CVSS 3.1
Exploitation probability0.58 %higher than 47% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

The Tainacan plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.3.0 via the 'guid' parameter parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. This vulnerability is exploitable only when the uploads/tainacan directory does not exist on the server, as this condition causes realpath() to return false, collapsing the base path to an empty string and rendering the containment check ineffective.

CVSS

Base score
6.5
Version
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.58 %
Percentile among all scored CVEs
47
Score date
10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Vector AV:N/PR:L/UI:N exige red con privilegios de suscriptor; el texto describe lectura de archivos arbitrarios del servidor mediante path traversal en el parámetro 'guid' (CWE-22).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Vulnerability ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationDisable or Remove Feature or ProgramApplication Isolation and Sandboxing

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Tainacan — TainacanAI

CWEs

References

Show 6 references

Raw JSON (NVD)

Show
{
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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    {
      "url": "https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L147",
      "source": "security@wordfence.com"
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    {
      "url": "https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L391",
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      "source": "security@wordfence.com"
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    }
  ],
  "lastModified": "2026-10-16T16:22:43.780",
  "sourceIdentifier": "security@wordfence.com"
}