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CVE-2015-6527

Status: ModifiedHigh (7.3)—
Severity7.3High · CVSS 3.1
Exploitation probability3.86 %higher than 90% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

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.

CVSS

Base score
7.3
Version
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
3.86 %
Percentile among all scored CVEs
90
Score date
10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

PHP — PHP

CWEs

References

Show 6 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2015-6527",
  "cveTags": [],
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          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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        "acInsufInfo": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
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  "affected": [
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  "published": "2016-01-19T05:59:01.327",
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      "url": "http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=6aeee47b2cd47915ccfa3b41433a3f57aea24dd5",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "La función php_str_replace_in_subjec en ext/standard/string.c en PHP 7.x en versiones anteriores a 7.0.0 permite a atacantes remotos ejecutar código arbitrario a través de un valor manipulado en el tercer argumento en la función str_ireplace."
    }
  ],
  "lastModified": "2026-06-17T00:31:01.107",
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}