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No exploitation reportedFix available

CVE-2020-1721

No exploitation reported by the sources we read.

  • Published2021-04-30
  • WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A flaw was found in the Key Recovery Authority (KRA) Agent Service in pki-core 10.10.5 where it did not properly sanitize the recovery ID during a key recovery request, enabling a reflected cross-site scripting (XSS) vulnerability. An attacker could trick an authenticated victim into executing specially crafted Javascript code.

Timeline

dates in UTC
  1. 2021-04-3012:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-1721?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-1721?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Dogtagpki
BranchAffectedFixed in
10.10= 10.10.5no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • apache-commons-collectionsRocky Linux:8all versions · fixed in 0:3.2.2-10.module+el8.3.0+53+ea062990
  • apache-commons-collectionsRocky Linux:8all versions · fixed in 0:3.2.2-10.module+el8.3.0+74+855e3f5d
  • apache-commons-collectionsRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:3.2.2-10.module+el8.1.0+3366+6dfb954c
  • apache-commons-langRocky Linux:8all versions · fixed in 0:2.6-21.module+el8.3.0+53+ea062990
  • apache-commons-langRocky Linux:8all versions · fixed in 0:2.6-21.module+el8.3.0+74+855e3f5d
  • apache-commons-langRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:2.6-21.module+el8.1.0+3366+6dfb954c
  • apache-commons-netRocky Linux:8all versions · fixed in 0:3.6-3.module+el8.3.0+53+ea062990
  • apache-commons-netRocky Linux:8all versions · fixed in 0:3.6-3.module+el8.3.0+74+855e3f5d

73 more package ranges on OSV.dev

Vendor advisories

  • RHSA-2021:0851 Red Hat Product Security56 products fixed

    Red Hat Security Advisory: pki-core security and bug fix update

  • RHSA-2020:4847 Red Hat Product Security128 products fixed

    Red Hat Security Advisory: pki-core:10.6 and pki-deps:10.6 security, bug fix, and enhancement update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2021:0851 · 56 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.16.1read 2026-10-23
  • NVDCVSS 2.04.3read 2026-10-23
  • CNAweakness (CWE)CWE-79known since 2026-10-23
  • FIRST EPSSEPSS score1.0 %2026-11-03
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published
2021-04-30
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-1721?

A flaw was found in the Key Recovery Authority (KRA) Agent Service in pki-core 10.10.5 where it did not properly sanitize the recovery ID during a key recovery request, enabling a reflected cross-site scripting (XSS) vulnerability. An attacker could trick an authenticated victim into executing specially crafted Javascript code.

Is CVE-2020-1721 actively exploited?

Active exploitation of CVE-2020-1721 has not been confirmed. Its EPSS score was 1.0% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-1721?

CVE-2020-1721 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

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Sources for this record