CVE-2026-1236

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.12.3]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Envira Gallery \u2013 Image Photo Gallery, Albums, Video Gallery, Slideshows & More", "source": "cna", "vendor": "smub"}, "product": "photo_gallery", "vendor": "enviragallery"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-04-15T20:04:23.069584+00:00", "value": {"mitigation_remediation": ["Update the Envira Gallery plugin to the latest version (>=1.12.4) which removes the insecure handling of the \"justified_gallery_theme\" parameter.", "After updating, delete or disable any galleries that have been configured by users to ensure that no malicious content remains stored in the database.", "Implement a Content Security Policy or use a security plugin to block inline script execution, reducing risk until the plugin is fully patched."], "summary": {"action": "Apply Patch", "impact": "Stored Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "The affected software is the Envira Gallery plugin for WordPress, produced by smub. All releases up to and including version 1.12.3 are vulnerable. WordPress sites running any of these plugin versions are at risk.", "description_and_impact": "The vulnerability allows an authenticated user with Author or higher privileges to inject arbitrary JavaScript into the \"justified_gallery_theme\" parameter of the plugin. Because the input is not sanitized and output is not escaped, the script is stored and executed whenever a page containing the gallery is viewed. This can lead to theft of cookies, session hijacking, defacement, or broader compromise of other visitors\u2019 browsers. The weakness is a classic stored cross\u2011site scripting flaw (CWE\u201179).", "risk_and_exploitability": "The CVSS score of 6.4 indicates moderate severity. The EPSS score of less than 1% suggests a very low exploitation probability, and the vulnerability is not listed in CISA\u2019s KEV catalog. Exploitation requires the attacker to be an authenticated Author or higher on the affected WordPress site; they must submit a gallery configuration that includes a malicious \"justified_gallery_theme\" value, which is then stored in the database and rendered in subsequent page loads. The attack vector is local to the web application but can have remote effects on unauthenticated visitors who view the injected content."}}}}, "created": "2026-03-04T21:03:54.291671+00:00", "updated": "2026-04-15T20:15:13.706149+00:00", "vendors": ["enviragallery", "enviragallery$PRODUCT$photo_gallery", "wordpress", "wordpress$PRODUCT$wordpress"]}