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CVE-2026-4801

The Page Builder Gutenberg Blocks – CoBlocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via external iCal feed data in all versions up to, and including, 3.1.16 due to insufficient output escaping of event titles, descriptions, and locations fetched from external iCal feeds in the Events block rendering function. 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
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d8b364fb4b3226a06e68a2dbb1baf0d5d75e1c4993c802add194fb563215cdfb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Page Builder Gutenberg Blocks – CoBlocks","vendor":"godaddy","versions":[{"lessThanOrEqual":"3.1.16","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":6.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/problemTypes/0/descriptions/0

Source references

13 source assertions
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L218"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L245"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/4
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L246"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/6
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L255"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/8
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/tags/3.1.16/src/blocks/events/index.php#L91"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/10
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L218"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L245"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L246"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/5
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L255"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/7
{"url":"https://plugins.trac.wordpress.org/browser/coblocks/trunk/src/blocks/events/index.php#L91"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/9
{"url":"https://plugins.trac.wordpress.org/changeset/3475789/coblocks/trunk/src/blocks/events/index.php"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/11
{"url":"https://plugins.trac.wordpress.org/changeset?old_path=%2Fcoblocks/tags/3.1.16&new_path=%2Fcoblocks/tags/3.1.17"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /containers/cna/references/12
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/bde0aef3-aa61-4ee7-9cbf-9f51cb5ac700?source=cve"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3748f0f1be5911f7191a3324fc4717a0be40d0503d1f5d8d4671ace8d35787c3 · sha256:08aef1c6669e2b9e… · /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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