CVE-2026-6443: Accordion and Accordion Slider (WordPress plugin) · Embedded Malicious Code
Affects Accordion and Accordion Slider (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 30 Oct 2026, 06:59 UTC
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:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| essentialpluginAccordion and Accordion Slider | Affected
| Fixed in– |
| essentialpluginPortfolio and Projects | Affected
| Fixed in– |
| essentialpluginFeatured Post Creative | Affected
| Fixed in– |
| essentialpluginPost grid and filter ultimate | Affected
| Fixed in– |
| essentialpluginWP Featured Content and Slider | Affected
| Fixed in– |
| essentialpluginPost Ticker Ultimate | Affected
| 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.