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Fencer Intel
medium 6.1

CVE-2021-24298 json

Simple Giveaways < 2.36.2 - Unauthenticated Reflected Cross-Site Scripting (XSS)

published 5y ago modified 4mo ago also EUVD-2021-11212

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.5%
EPSS 3.5% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known, plus a Nuclei check

Summary

The method and share GET parameters of the Giveaway pages were not sanitised, validated or escaped before being output back in the pages, thus leading to reflected XSS

Patch / fix

  • ibenic simple_giveaways 2.36.2

Is CVE-2021-24298 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

3.45% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Nuclei template WordPress Simple Giveaways <2.36.2 - Cross-Site Scripting nuclei detection template
  • wpscan.com https://wpscan.com/vulnerability/30aebded-3eb3-4dda-90b5-12de5e622c91 referenced PoC, tagged "exploit" by a source, unverified
  • codevigilant.com https://codevigilant.com/disclosure/2021/wp-plugin-giveasap-xss/ 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

Affected products

  • Igor Benic Simple Giveaways – Grow your business, email lists and traffic with contests

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.