CVE-2026-8877

LOWCVSS 6.4 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The Responsive Video Embedder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'rem_video' shortcode in versions up to, and including, 0.1. This is due to insufficient input sanitization and output escaping on user supplied attributes (notably 'id' and 'list') in the video_shortcode() function, which are concatenated directly into an HTML iframe's src attribute without escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-10-05: 210-05
Full discourse2 posts
  • Carlos Fynn@fynn_JourX

    Citrix NetScaler SAML Zero-Day Exploited (CVE-2026-8877… is the kind of management-plane bug defenders should move on fast. It combines active exploitation with security exposure and auth bypass risk in FortiClient EMS. When endpoint management infrastructure is expose…

    0000058
    86 followersView on X
  • Lucas Verdan - Invaders.ie@lucasverdan

    Citrix NetScaler SAML Zero-Day Exploited (CVE-2026-8877… is already being exploited, and Fortinet says the FortiClient EMS flaw carries security exposure and auth bypass risk. If you run 7.4.5 or 7.4.6, treat it as exposed management-plane risk and hotfix now.

    0000086
    314 followersView on X

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