CVE-2021-37541Network attack vector

HTML injection through password reset emails

Published Aug 6, 2021 · Updated Aug 4, 2024

HTML injection in JetBrains Hub before 2021.1.13402 allows remote attackers to alter password reset email content via crafted input. The public advisory identifies the password reset email as the injection sink but does not disclose the input field or encoding failure. Exploitation requires a recipient to interact with the generated email; published evidence supports injected HTML content, not server-side code execution.

CVSS severity6.1
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in JetBrains Hub before 2021.1.13402 allows remote attackers to alter password reset email content via crafted input. The public advisory identifies the password reset email as the injection sink but does not disclose the input field or encoding failure. Exploitation requires a recipient to interact with the generated email; published evidence supports injected HTML content, not server-side code execution.

The record

CVE
CVE-2021-37541
Published
Aug 6, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, CWE-640
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-640Weak Password Recovery Mechanism for Forgotten Password

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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