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VulnerabilityPublished Updated

CVE-2026-6443: Accordion and Accordion Slider (WordPress plugin) · Embedded Malicious Code

Affects Accordion and Accordion Slider (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Contested

Critical score, yet low EPSS after six months
EPSS
0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
essentialpluginAccordion and Accordion SliderAffected
  • =1.4.6
Fixed in–
essentialpluginPortfolio and ProjectsAffected
  • =1.5.6
Fixed in–
essentialpluginFeatured Post CreativeAffected
  • =1.5.7
Fixed in–
essentialpluginPost grid and filter ultimateAffected
  • =1.7.4
Fixed in–
essentialpluginWP Featured Content and SliderAffected
  • =1.7.6
Fixed in–
essentialpluginPost Ticker UltimateAffected
  • =1.7.6
Fixed in–

AI-suggested

Until an official fix is released, affected users should consider removing or disabling the vulnerable plugins (version 1.4.6) and monitoring for suspicious activity. Avoid using these plugins from untrusted sources. Stay alert for vendor updates or community-provided patches.

Description

All plugins by Essentialplugin for WordPress are vulnerable to an injected backdoor in various versions. This is due to the plugin being sold to a malicious threat actor that embedded a backdoor in all of the plugin's they acquired. This makes it possible for the threat actor to maintain a persistent backdoor and inject spam into the affected sites.

References

Community reviews

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