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Fencer Vulns
medium 5.4

CVE-2020-27851 json

Gravity Forms stored HTML injection vulnerability

published 2021-01-20 5 y ago modified 2026-06-17 4 mo ago also EUVD-2022-3751 , GHSA-fcj2-rxqc-294c

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

Multiple stored HTML injection vulnerabilities in the "poll" and "quiz" features in an additional paid add-on of Rocketgenius Gravity Forms before 2.4.21 allows remote attackers to inject arbitrary HTML code via poll or quiz answers. This code is interpreted by users in a privileged role (Administrator, Editor, etc.).

Patch / fix

  • packagist wp-premium/gravityforms 2.4.21
  • rocketgenius gravityforms 2.4.21

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected packages

ecosystem package affected fixed in
packagist wp-premium/gravityforms
<2.4.21
2.4.21

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.