CVE-2021-21441

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

There is a XSS vulnerability in the ticket overview screens. It's possible to collect various information by having an e-mail shown in the overview screen. Attack can be performed by sending specially crafted e-mail to the system and it doesn't require any user intraction. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.26 and prior versions.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
64%
KEV
Not listed

Published

June 16, 2021

Last Modified

November 21, 2024

References (4)

Affected Packages

(2 across 2 ecosystems)
Debian:10(1)
PackageVulnerable rangeFixed inDependents
otrs22.0.4p01-10 ... 6.0.9-1~bpo9+1 (219 versions)6.0.16-2+deb10u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
otrs22.0.4p01-10 ... 6.0.9-1~bpo9+1 (251 versions)6.0.32-5—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 30× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 165 total refreshes for this CVE.

  1. 2026-09-24 14:00 UTCEPSS rescore
  2. 2026-09-24 14:00 UTCEPSS rescore
  3. 2026-09-23 13:44 UTCEPSS rescore
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  18. 2026-09-06 15:01 UTCOSV refresh
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  1. 2026-09-01 03:32 UTCEPSS rescore
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  11. 2026-08-20 01:04 UTCOSV refresh
  12. 2026-08-19 17:01 UTCEPSS rescore
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  25. 2026-08-05 19:14 UTCEPSS rescore
  26. 2026-08-04 19:57 UTCOSV refresh
  27. 2026-08-04 15:06 UTCEPSS rescore
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  38. 2026-07-23 01:57 UTCEG score recompute
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  40. 2026-07-22 14:05 UTCEPSS rescore
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  44. 2026-07-19 14:28 UTCEPSS rescore
  45. 2026-07-19 02:26 UTCEPSS rescore
  46. 2026-07-18 18:29 UTCOSV refresh
  47. 2026-07-18 10:02 UTCEPSS rescore
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  49. 2026-07-15 16:55 UTCEPSS rescore
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  69. 2026-07-02 16:57 UTCEPSS rescore
  70. 2026-07-01 15:03 UTCEPSS rescore
  71. 2026-07-01 01:18 UTCOSV refresh
  72. 2026-06-30 23:20 UTCEPSS rescore
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  74. 2026-06-29 14:04 UTCEPSS rescore
  75. 2026-06-29 14:04 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2021-21441?
CVE-2021-21441 is a high vulnerability published on June 16, 2021. There is a XSS vulnerability in the ticket overview screens. It's possible to collect various information by having an e-mail shown in the overview screen. Attack can be performed by sending specially crafted e-mail to the system and it doesn't require any user intraction. This issue affects: OTRS…
When was CVE-2021-21441 disclosed?
CVE-2021-21441 was first published in the National Vulnerability Database on June 16, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-21441 actively exploited?
CVE-2021-21441 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 36.1% of all scored CVEs.
What is the CVSS score of CVE-2021-21441?
CVE-2021-21441 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-21441?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-21441, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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