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CVE-2026-1916

The WPGSI: Spreadsheet Integration plugin for WordPress is vulnerable to unauthorized modification and loss of data due to missing capability checks and an insecure authentication mechanism on the `wpgsi_callBackFuncAccept` and `wpgsi_callBackFuncUpdate` REST API functions in all versions up to, and including, 3.8.3. Both REST endpoints use `permission_callback => '__return_true'`, allowing unauthenticated access. The plugin's custom token-based validation relies on a Base64-encoded JSON object
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:20972b6d5e426cb9fdfc747e6e969e60b4d18441d520dbf92811ccff69c75979
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"WPGSI: Spreadsheet Integration","vendor":"javmah","versions":[{"lessThanOrEqual":"3.8.3","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/problemTypes/0/descriptions/0

Source references

8 source assertions
{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/tags/3.8.3/admin/class-wpgsi-update.php#L116"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/tags/3.8.3/admin/class-wpgsi-update.php#L636"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/tags/3.8.3/admin/class-wpgsi-update.php#L94"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/trunk/admin/class-wpgsi-update.php#L116"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/references/5
{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/trunk/admin/class-wpgsi-update.php#L636"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/references/6
{"url":"https://plugins.trac.wordpress.org/browser/wpgsi/trunk/admin/class-wpgsi-update.php#L94"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/references/4
{"url":"https://plugins.trac.wordpress.org/changeset/3461326/wpgsi/trunk/admin/class-wpgsi-update.php"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/references/7
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/7598b38b-26b1-4640-9bd7-60613a5f704d?source=cve"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69257c0e5e487ab804c4fdbda113bd8a5c043a303cb261143b6b94bcb51e669f · sha256:5f625a709c4d9250… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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