CVE Explorer

CVE-2026-6427

The a3 Lazy Load plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.7.6 This is due to a regex bug in the _filter_videos() method that breaks HTML attribute quoting when processing crafted <video> elements, combined with unescaped output in the admin/views/form-data.php template. An authenticated attacker with Contributor-level access can insert a crafted <video> tag whose src attribute contains an embedded class=" substring that tricks the

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1d020dd7b61d716efc4259b0d72c24a863c583d199d5c8dbaf5e2ff23bd3e685

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"a3 Lazy Load","vendor":"a3rev","versions":[{"lessThanOrEqual":"2.7.6","status":"affected","version":"0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /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:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /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:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /containers/cna/problemTypes/0/descriptions/0

Source references

8 source assertions

{"url":"https://plugins.trac.wordpress.org/browser/a3-lazy-load/trunk/admin/views/form-data.php#L11"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /containers/cna/references/6

{"url":"https://plugins.trac.wordpress.org/browser/a3-lazy-load/trunk/classes/class-a3-lazy-load.php#L124"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /containers/cna/references/5

{"url":"https://plugins.trac.wordpress.org/browser/a3-lazy-load/trunk/classes/class-a3-lazy-load.php#L136"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /containers/cna/references/4

{"url":"https://plugins.trac.wordpress.org/browser/a3-lazy-load/trunk/classes/class-a3-lazy-load.php#L623"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /containers/cna/references/3

{"url":"https://plugins.trac.wordpress.org/browser/a3-lazy-load/trunk/classes/class-a3-lazy-load.php#L643"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /containers/cna/references/2

{"url":"https://plugins.trac.wordpress.org/browser/a3-lazy-load/trunk/classes/class-a3-lazy-load.php#L666"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /containers/cna/references/1

{"url":"https://plugins.trac.wordpress.org/changeset?old_path=%2Fa3-lazy-load/tags/2.7.6&new_path=%2Fa3-lazy-load/tags/2.7.7"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /containers/cna/references/7

{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/5246efbb-93cc-4951-900e-d13d08840f03?source=cve"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b91df10d0241ad9911760e7f526a1a2c904e70cff1c984c56a1147c0bb8aba2 · sha256:4e31067fad1fe401… · /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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