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CVE-2026-104400

WordPress B Blocks plugin <= 2.1.8 - Cross Site Scripting (XSS) vulnerability

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-104400

Published

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bPlugins B Blocks b-blocks allows Stored XSS.This issue affects B Blocks: from n/a through 2.1.8.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-104400

Published

WordPress B Blocks plugin <= 2.1.8 - Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bPlugins B Blocks b-blocks allows Stored XSS.This issue affects B Blocks: from n/a through 2.1.8.

Source published
5 Oct 2026 08:07:32 UTC
Source modified
5 Oct 2026 14:05:02 UTC
Saved here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

ChangeIntel

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Sources read 12 Nov 15:26 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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