CVE-2026-84259click5 CRM add-on to WPForms <= 1.0.3 - Unauthenticated Stored XSS via post_notifications
- 8.8HighCVSS base score
- 0.29%Exploitation in 30 daysEPSS · top 78% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
Description
The click5 CRM add-on to WPForms WordPress plugin through 1.0.3 does not sanitise and escape content submitted through an unauthenticated endpoint before outputting it back in an admin page, leading to Stored XSS which could be used against high privilege users such as admin.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit.
Show the exploits1
References tagged exploit1 reference
- https://wpscan.com/vulnerability/ab1b9586-b950-4213-891e-b973bc8f13be/ (opens in a new tab)exploitvdb-entrytechnical-description
Timeline
ID reserved
By WPScan
- 40 days later
· 40 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.29% · top 78% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
Unknown · click5 CRM add-on to WPForms
- affected ≤ 1.0.3
References
References1
- https://wpscan.com/vulnerability/ab1b9586-b950-4213-891e-b973bc8f13be/ (opens in a new tab)exploitvdb-entrytechnical-description
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-96758 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-84259)Record last updated .