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CVE-2012-5491: Plone Information Disclosure

5.3

CVSS Score
3.1

Basic Information

EPSS Score
0.54353%
Published
5/17/2022
Updated
10/11/2024
KEV Status
No
Technology
TechnologyPython

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
plonepip< 4.2.34.2.3
Plonepip>= 4.3a0, < 4.3b14.3b1

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from improper access control in z3c.form's widget traversal mechanism. The CVE description explicitly references 'widget_traversal.py' in Plone's security advisory 20121106/07, indicating traversal-related exposure of default values. The getitem method in widget traversal is typically responsible for resolving traversal steps, and lack of authorization here would let attackers access hidden form field metadata by constructing URLs targeting specific widget element IDs. The patch in Plone 4.2.3/4.3b1 likely added security checks to this traversal pathway.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

`z**.*orm`, *s us** in Plon* ***or* *.*.* *n* *.* ***or* **t* *, *llows r*mot* *tt**k*rs to o*t*in t** ****ult *orm *i*l* v*lu*s *y l*v*r**in* knowl**** o* t** *orm lo**tion *n* t** *l*m*nt i*.

Reasoning

T** vuln*r**ility st*ms *rom improp*r ****ss *ontrol in z**.*orm's wi***t tr*v*rs*l m****nism. T** *V* **s*ription *xpli*itly r***r*n**s 'wi***t_tr*v*rs*l.py' in Plon*'s s**urity **visory ********/**, in*i**tin* tr*v*rs*l-r*l*t** *xposur* o* ****ult