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CVE-2026-12428

The Blocks for ACF Fields plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the get_all_values() function in the /wp-json/acf-field-blocks/v1/values REST endpoint in versions up to, and including, 1.6.2. The permission_callback only verifies the generic publish_posts capability and the handler passes a user-supplied id parameter directly to get_field_objects() without verifying that the requesting user is authorized to read the target object.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e31270e4ef3165920361cd8d8cb4bc88fd9f9795532a77548258573889fd4b00
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Blocks for ACF Fields — Display Custom Fields in the Block Editor","vendor":"gamaup","versions":[{"lessThanOrEqual":"1.6.2","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /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:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/problemTypes/0/descriptions/0

Source references

8 source assertions
{"url":"https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.5.0/inc/class-rest.php#L100"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/references/5
{"url":"https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.5.0/inc/class-rest.php#L296"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/references/6
{"url":"https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.5.0/inc/class-rest.php#L302"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/references/4
{"url":"https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.6.0/inc/class-rest.php#L100"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.6.0/inc/class-rest.php#L296"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.6.0/inc/class-rest.php#L302"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3587876%40acf-field-blocks&new=3587876%40acf-field-blocks"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /containers/cna/references/7
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/fc48f75d-a2e8-49ea-9bfa-a27a61ff8a84?source=cve"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6197eecab0c5a1a7d7bf0c976fb4ab01f07d734aa9d396a840537fe88362cbb7 · sha256:3f7b9def966fce30… · /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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