5

CVE-2011-4885: php Improper Input Validation

Modified
Published 30-12-2011Last modified 07-08-2024

Vulnerability summary

CVE-2011-4885 is a medium (CVSS 5.0) Improper Input Validation vulnerability in php. EPSS estimates a 83.37% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities. 4 public exploits are recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (Metasploit, 28-12-2011)

Source freshness unavailable

How is this decided?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
83.37%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits4exploit-database, metasploit

Advisory lineage

Upstream 0 · Downstream 7 · Related 3
DSA-2399-1OPENSUSE-SU-2024:10290-1OPENSUSE-SU-2024:10344-1OPENSUSE-SU-2024:11169-1RHSA-2012:0019RHSA-2012:0033

Timeline

  1. 30-12-2011
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

83.37%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

No change 0.00 pp

From 83.37% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

4 found
  • exploit-databasedosphpUnverified

    PHP 5.3.8 - Hashtables Denial of Service

    Maturity: poc

  • exploit-databasedosphpVerified

    PHP Hash Table Collision - Denial of Service (PoC)

    Maturity: poc

  • exploit-databasephpVerified

    MyBulletinBoard (MyBB) 1.1.5 - 'CLIENT-IP' SQL Injection

    Maturity: poc

Show all 4 exploits
  • MetasploitMetasploitremoteUnverified

    Hashtable Collisions

    auxiliary/dos/http/hashcollision_dos

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Php1 product
  • phpEOL≤ 5.3.8 | 5.0.0 | 5.0.0:beta1 | 5.0.0:beta2 | 5.0.0:beta3 | 5.0.0:beta4 | 5.0.0:rc1 | 5.0.0:rc2 | 5.0.0:rc3 | 5.0.1 | 5.0.2 | 5.0.3 | 5.0.4 | 5.0.5 | 5.1.1 | 5.1.2 | 5.1.3 | 5.1.4 | 5.1.5 | 5.1.6 | 5.2.0 | 5.2.1 | 5.2.2 | 5.2.3 | 5.2.4 | 5.2.5 | 5.2.6 | 5.2.7 | 5.2.8 | 5.2.9 | 5.2.10 | 5.2.11 | 5.2.12 | 5.2.14 | 5.2.15 | 5.2.16 | 5.2.17 | 5.3.0 | 5.3.1 | 5.3.2 | 5.3.3 | 5.3.4 | 5.3.5 | 5.3.6 | 5.3.7

1 vendor · 1 product

References

27 links
Show all 27 references