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Fencer Intel
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 6y ago modified 4mo 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

Is CVE-2020-8549 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.88% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

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 Intel 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.