TYPO3 Information Disclosure Vulnerability

published 2017-03-17 9 y ago modified 2026-06-17 4 mo ago also GHSA-87hc-phmj-rhgh , EUVD-2022-3136

cvss: 5.3; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits: 0; none known

TYPO3 7.6.15 sends an http request to an index.php?loginProvider URI in cases with an https Referer, which allows remote attackers to obtain sensitive cleartext information by sniffing the network and reading the userident and username fields.

Exploit prediction

0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/faizzaidi/TYPO3-v7.6.15-Unencrypted-Login-Request referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub	3.0	5.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	typo3/cms	1 listed version	no fix listed

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information

References

github.com /faizzaidi/TYPO3-v7.6.15-Unencrypted-Login-Request
web, exploit, third-party-advisory
securityfocus.com /bid/97071
vdb-entry, web
nvd.nist.gov /vuln/detail/CVE-2017-6370
advisory
github.com /TYPO3/typo3
package

Sources

CVE List CVE-2017-6370
GitHub Advisory GHSA-87hc-phmj-rhgh
NVD CVE-2017-6370

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.

Summary