CVE-2020-12699Network attack vector

Open redirect via improper jumpUrl handling

Published May 13, 2020 · Updated Aug 4, 2024

Open redirect in TYPO3 Direct Mail 5.2.3 and earlier allows remote attackers to redirect newsletter readers through crafted jumpUrl links. The extension's newsletter-link handler accepts a jumpUrl destination without constraining the redirect to a trusted site. Exploitation requires a newsletter reader to follow the link, after which the attacker-chosen site can present phishing content.

CVSS severity6.1
Medium
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in TYPO3 Direct Mail 5.2.3 and earlier allows remote attackers to redirect newsletter readers through crafted jumpUrl links. The extension's newsletter-link handler accepts a jumpUrl destination without constraining the redirect to a trusted site. Exploitation requires a newsletter reader to follow the link, after which the attacker-chosen site can present phishing content.

The record

CVE
CVE-2020-12699
Published
May 13, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2020CVE 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

6.1GitHub Security AdvisoryCVSS: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001User Execution: Malicious Link

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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