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CVE-2012-5657

18
FAUCET Score

CVE-2012-5657 describes an XML External Entity (XXE) vulnerability in the Zend_Feed_Rss and Zend_Feed_Atom classes within Zend Framework versions 1.11.x before 1.11.15 and 1.12.x before 1.12.1. This flaw allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, and potentially cause a denial of service through CPU and memory consumption. With a CVSS score of 5.0, it is a medium severity vulnerability with a network attack vector and low attack complexity, impacting confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.11.0CPE matchmatch criteria
cpe:2.3:a:zend:zend_framework:1.11.0:*:*:*:*:*:*:*
1.11.1CPE matchmatch criteria
cpe:2.3:a:zend:zend_framework:1.11.1:*:*:*:*:*:*:*
1.11.2CPE matchmatch criteria
cpe:2.3:a:zend:zend_framework:1.11.2:*:*:*:*:*:*:*
1.11.3CPE matchmatch criteria
cpe:2.3:a:zend:zend_framework:1.11.3:*:*:*:*:*:*:*
1.11.4CPE matchmatch criteria
cpe:2.3:a:zend:zend_framework:1.11.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
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
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0170 is in the 60th percentile among its peer group of 23,701 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: zendframework/zendframework1Fixed in: 1.11.15
composerpatch availablevia ghsa
Product: zendframework/zendframework1Fixed in: 1.12.1

Vendor Advisories (1)

composerGHSA-9m5v-vq4f-mrvfmedium

Zend Framework XXE Vulnerability

May 17, 2022

References

framework.zend.com / security/advisory/ZF2012-05
Vendor Advisory
openwall.com / lists/oss-security/2012/12/20/2
openwall.com / lists/oss-security/2012/12/20/4
secunia.com / advisories/51583
Vendor Advisory
debian.org / security/2012/dsa-2602
mandriva.com / security/advisories