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Fencer Vulns
medium 6.1

CVE-2020-8549 json

Stored XSS in the Strong Testimonials plugin before 2.40.1 for WordPress can result in an attacker performing malicious actions such as ste…

published 2020-02-03 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-29415

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Stored XSS in the Strong Testimonials plugin before 2.40.1 for WordPress can result in an attacker performing malicious actions such as stealing session tokens.

Patch / fix

  • wpchill strong_testimonials 2.40.1

Exploit prediction

1.88% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • getastra.com https://www.getastra.com/blog/911/plugin-exploit/stored-xss-vulnerability-found-in-strong-testimonials-plugin/ referenced PoC, tagged "exploit" by a source, unverified
  • jinsonvarghese.com https://www.jinsonvarghese.com/stored-xss-vulnerability-in-strong-testimonials-plugin/ referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/156369/WordPress-Strong-Testimonials-2.40.1-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.