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Fencer Vulns
high 8.1

CVE-2020-16253 json

PgHero gem allows CSRF

published 2020-08-05 6 y ago modified 2026-06-17 4 mo ago also GHSA-v6fx-752r-ccp2 , EUVD-2020-0642

cvss
8.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

The PgHero gem through 2.6.0 for Ruby allows CSRF.

Patch / fix

  • rubygems pghero 2.7.0

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:N/I:P/A:P
GitHub 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Affected packages

ecosystem package affected fixed in
rubygems pghero
<2.7.0
2.7.0

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

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.