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1 vulnerability found for CMB2 by Unknown

CVE-2026-80338 (GCVE-0-2026-80338)
Vulnerability from cvelistv5
Published
2026-09-24 06:00
Modified
2026-09-24 10:41
Summary
The CMB2 WordPress plugin before 2.13.0 does not perform any capability check on one of its AJAX actions, allowing users with a role as low as Subscriber to create arbitrary WordPress options and corrupt existing ones, which can break core site settings and take the site offline. Exploitation requires the site's or another CMB2 WordPress plugin before 2.13.0 to have declared an oEmbed field, as the CMB2 WordPress plugin before 2.13.0 registers none of its own. The stored value is never attacker-controlled, so the issue does not lead to privilege escalation.
References
Impacted products
Vendor Product Version
Unknown CMB2 Version: 0   ≤
Create a notification for this product.
Show details on NVD website


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              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.8,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H",
              "version": "3.1"
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-24T10:37:26.261371Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "vendor": "Unknown",
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        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
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      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "CMB2 \u003c 2.13.0 - Subscriber+ Arbitrary Option Corruption via oEmbed Handler",
      "x_generator": {
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    "dateReserved": "2026-08-26T09:02:21.818Z",
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