CVE-2015-4598: php Improper Input Validation
Vulnerability summary
CVE-2015-4598 is a high (CVSS 7.5) Improper Input Validation vulnerability in php. EPSS estimates a 3.76% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 4Timeline
- 16-05-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 does not ensure that pathnames lack %00 sequences, which might allow remote attackers to read or write to arbitrary files via crafted input to an application that calls (1) a DOMDocument save method or (2) the GD imagepsloadfont function, as demonstrated by a filename\0.html attack that bypasses an intended configuration in which client users may write to only .html files.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
3.76%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
Decrease -0.15 pp
From 3.92% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat7 products
- enterprise_linuxEOL6.0 | 7.0
- enterprise_linux_desktop7.0
- enterprise_linux_hpc_node7.0
- enterprise_linux_hpc_node_eus7.1
- enterprise_linux_server7.0
Php1 product
- phpEOL≤ 5.4.41 | 5.5.0 | 5.5.1 | 5.5.2 | 5.5.3 | 5.5.4 | 5.5.5 | 5.5.6 | 5.5.7 | 5.5.8 | 5.5.9 | 5.5.10 | 5.5.11 | 5.5.12 | 5.5.13 | 5.5.14 | 5.5.15 | 5.5.16 | 5.5.17 | 5.5.18 | 5.5.19 | 5.5.20 | 5.5.21 | 5.5.22 | 5.5.23 | 5.5.24 | 5.5.25 | 5.6.0 | 5.6.1 | 5.6.2 | 5.6.3 | 5.6.4 | 5.6.5 | 5.6.6 | 5.6.7 | 5.6.8 | 5.6.9
Ubuntu1 product
- php5< 5.5.9+dfsg-1ubuntu4.11
3 vendors · 9 products
References
15 links- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlX Refsource CONFIRM
- php.net/ChangeLog-5.phpX Refsource CONFIRM
- bugs.php.net/bug.php?id=69719X Refsource CONFIRM