EUVD-2026-82679
GHSA-c62f-23hx-w7cg
Severity by source
AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Contributor account = PR:L (not PR:H); stored XSS crosses into the viewer's browser context (S:C) with limited confidentiality/integrity impact (C:L/I:L) and no availability impact.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
4DescriptionCVE.org
The All Bootstrap Blocks WordPress plugin through 1.3.31 does not properly escape a block attribute before outputting it in HTML tag-name position, allowing users with Contributor-level access and above to inject arbitrary web scripts that execute when the affected content is viewed.
AnalysisAI
Stored cross-site scripting in the All Bootstrap Blocks WordPress plugin (all versions through 1.3.31) lets an authenticated user with Contributor-level access or above plant a malicious block attribute that the plugin writes into HTML tag-name position without escaping, so arbitrary JavaScript runs in the browser of anyone who later views the affected content. Publicly available exploit code exists, and the vendor's own advisory is linked from WPScan, but there is no evidence of active exploitation (no CISA KEV entry) and the plugin has a small deployment footprint, making real-world impact narrower than the headline CVSS 6.8 (Medium) suggests. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated WordPress account at Contributor level or above on a site running the All Bootstrap Blocks plugin through version 1.3.31; the attacker injects a payload into a Bootstrap block attribute that the plugin outputs without escaping in HTML tag-name position. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a Contributor-gated stored XSS in a niche WordPress block plugin, and the raw CVSS 6.8 (Medium) overstates the actual risk while its component metrics are internally inconsistent. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch version is identified in the available data (the advisory references point to WPScan and NVD rather than a tagged fixed release), so the primary action is to check the WPScan entry for an updated fixed version and, until it is confirmed, deactivate and delete All Bootstrap Blocks from sites that do not actively depend on it - the trade-off being loss of the plugin's Bootstrap block markup, which can be replaced with core blocks or hand-written HTML. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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