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CVE-2007-1900

15
FAUCET Score

CVE-2007-1900 describes a CRLF injection vulnerability in the FILTER_VALIDATE_EMAIL filter within PHP versions 5.2.0 and 5.2.1. This flaw allows attackers to inject arbitrary email headers by including a newline character in an email address, bypassing regular expression validation. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, potentially leading to partial integrity compromise. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.2.0CPE matchmatch criteria
cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*
5.2.1CPE matchmatch criteria
cpe:2.3:a:php:php:5.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.53%
Probability of exploitation in next 30 days
EPSS Percentile
83.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0253 is in the 75th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2007-1900

php ext/filter email validation issue

References

h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
secunia.com / advisories/24824
Vendor Advisory
secunia.com / advisories/25056
secunia.com / advisories/25057
secunia.com / advisories/25062
secunia.com / advisories/25445
secunia.com / advisories/25535
secunia.com / advisories/26231
secunia.com / advisories/27037
secunia.com / advisories/27102
secunia.com / advisories/27110
security.gentoo.org / glsa/glsa-200705-19.xml
exchange.xforce.ibmcloud.com / vulnerabilities/33510
slackware.com / security/viewer.php
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6067
redhat.com / archives/fedora-package-announce/2007-September/msg00397.html
debian.org / security/2007/dsa-1283
gentoo.org / security/en/glsa/glsa-200710-02.xml
novell.com / linux/security/advisories/2007_32_php.html
osvdb.org / 33962
php.net / releases/5_2_3.php
php-security.org / MOPB/PMOPB-45-2007.html
Vendor Advisory
securityfocus.com / bid/23359
trustix.org / errata/2007/0023
ubuntu.com / usn/usn-455-1
vupen.com / english/advisories/2007/2016
vupen.com / english/advisories/2007/3386