CVE-2015-6527

The php_str_replace_in_subject function in ext/standard/string.c in PHP 7.x before 7.0.0 allows...

7.3 High

The php_str_replace_in_subject function in ext/standard/string.c in PHP 7.x before 7.0.0 allows remote attackers to execute arbitrary code via a crafted value in the third argument to the str_ireplace function.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

3.86%Down 1.9 points since Feb 4, 2022

What each source reports

NVD Score used 7.3

Record: CVE-2015-6527
CVSS 3.1: 7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-6527
Updated: 2026-11-02

EUVDEUVD-2015-6466 No score

Record: EUVD-2015-6466
Updated: 2026-11-03

GitHub AdvisoriesGHSA-hrfw-px9c-c3f5 7.3

The php_str_replace_in_subject function in ext/standard/string.c in PHP 7.x before 7.0.0 allows...

Record: GHSA-hrfw-px9c-c3f5
CVSS 3.0: 7.3 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Updated: 2026-11-02

OSVBELL-CVE-2015-6527 7.3

CVE-2015-6527 does not affect BellSoft software

Record: BELL-CVE-2015-6527
CVSS 3.1: 7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-6527 is a high vulnerability (CVSS 7.3) in Php, published January 19, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.86%, the 90th percentile. No source names a fixed version.