Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
PR:L confirmed by Contributor-role requirement; UI:R for victim page view; S:C for XSS browser boundary; A:N because XSS does not cause meaningful availability impact.
Primary rating from Vendor (patchstack).
CVSS VectorVendor: patchstack
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Lifecycle Timeline
1DescriptionCVE.org
Contributor Cross Site Scripting (XSS) in Magazine Blocks <= 1.8.3 versions.
AnalysisAI
Stored Cross-Site Scripting in the Magazine Blocks WordPress plugin (versions ≤ 1.8.3) allows authenticated contributors to inject persistent malicious JavaScript into page content. Because the vulnerability carries a scope change (S:C in CVSS), successful exploitation targets the browsers of higher-privileged users - typically editors or administrators - who view the affected content. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold at minimum a WordPress Contributor account on the target site - unauthenticated exploitation is not possible given PR:L in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD CVSS 6.5 (Medium) vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L accurately reflects the meaningful prerequisite: an attacker must already hold a Contributor account on the target WordPress site. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers or compromises a Contributor-level WordPress account on a site running Magazine Blocks ≤ 1.8.3, then creates or edits a draft post embedding a malicious JavaScript payload within a Magazine Blocks block attribute. When a site administrator or editor opens the post for review or preview, the script executes in their browser, potentially exfiltrating the session cookie or performing privileged WordPress actions on their behalf. … |
| Remediation | Update the Magazine Blocks plugin beyond version 1.8.3; the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/magazine-blocks/vulnerability/wordpress-magazine-blocks-plugin-1-8-3-cross-site-scripting-xss-vulnerability) should be consulted for the confirmed patched release version, which was not independently specified in the available intelligence. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-39765
GHSA-32p4-hwpj-mqvq