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Fencer Vulns
medium 6.1

CVE-2018-17082 json

The Apache2 component in PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before 7.2.10 allows XSS via the body of a…

published 2018-09-16 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8862

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known, plus a Nuclei check

Summary

The Apache2 component in PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before 7.2.10 allows XSS via the body of a "Transfer-Encoding: chunked" request, because the bucket brigade is mishandled in the php_handler function in sapi/apache2handler/sapi_apache2.c.

Patch / fix

  • php php 5.6.38, 7.0.32, 7.1.22, 7.2.10
  • php5 Ubuntu 14.04 LTS 5.5.9+dfsg-1ubuntu4.26
  • php7.0 Ubuntu 16.04 LTS 7.0.32-0ubuntu0.16.04.1
  • php7.2 Ubuntu 18.04 LTS 7.2.10-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-17082

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rh-php71-php RHEL 3 SOFTWARE_COLLECTIONS 7.1.30-1.el7
  • rh-php71-php-gd RHEL 3 SOFTWARE_COLLECTIONS 7.1.30-1.el7
  • rh-php71-php-cli RHEL 3 SOFTWARE_COLLECTIONS 7.1.30-1.el7
  • rh-php71-php-dba RHEL 3 SOFTWARE_COLLECTIONS 7.1.30-1.el7
  • rh-php71-php-dbg RHEL 3 SOFTWARE_COLLECTIONS 7.1.30-1.el7
  • rh-php71-php-fpm RHEL 3 SOFTWARE_COLLECTIONS 7.1.30-1.el7
  • rh-php71-php-gmp RHEL 3 SOFTWARE_COLLECTIONS 7.1.30-1.el7
  • rh-php71-php-pdo RHEL 3 SOFTWARE_COLLECTIONS 7.1.30-1.el7

red hat advisories RHSA-2019:2519

  • php7 SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +8 more 7.2.34-150000.4.103.1
  • php7 SLE Module for Web and Scripting 15 7.2.5-4.12.2
  • php5 SLE Software Development Kit 12 SP3, SLE Module for Web and Scripting 12 5.5.14-109.41.1
  • php53 SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 5.3.17-112.41.1
  • php7 SLE Software Development Kit 12 SP3, SLE Module for Web and Scripting 12 7.0.7-50.52.1

suse advisories SUSE-SU-2022:4067-1SUSE-SU-2018:3016-1SUSE-SU-2018:3017-1SUSE-SU-2018:3018-1SUSE-SU-2018:2887-1

  • php7 openSUSE Tumbleweed 7.4.24-1.1
  • php8 openSUSE Tumbleweed 8.0.11-1.1

opensuse advisories openSUSE-SU-2024:11167-1openSUSE-SU-2024:11169-1

  • php5 Alpine 3.8, Alpine 3.5 5.6.38-r0
  • php7 Alpine 3.5 7.0.32-r0
  • php7 Alpine 3.7 7.1.29-r0

alpine advisories ALPINE-CVE-2018-17082

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-17082 updated cvss 4.7

php: Cross-site scripting (XSS) flaw in Apache2 component via body of 'Transfer-Encoding: chunked' request

  • Red Hat Enterprise Linux 5 php, php53 Red Hat Enterprise Linux 6 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +20 more Red Hat Enterprise Linux 7 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +18 more Red Hat Software Collections rh-php70-php, rh-php70-php-gd, rh-php70-php-cli, rh-php70-php-dba, rh-php70-php-dbg, rh-php70-php-fpm, +24 more
    affected: no fix planned “Will not fix”
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php71-php 7.1.30-1.el7, rh-php71-php-gd 7.1.30-1.el7, rh-php71-php-cli 7.1.30-1.el7, rh-php71-php-dba 7.1.30-1.el7, rh-php71-php-dbg 7.1.30-1.el7, rh-php71-php-fpm 7.1.30-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-php71-php 7.1.30-1.el7, rh-php71-php-gd 7.1.30-1.el7, rh-php71-php-cli 7.1.30-1.el7, rh-php71-php-dba 7.1.30-1.el7, rh-php71-php-dbg 7.1.30-1.el7, rh-php71-php-fpm 7.1.30-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-php71-php 7.1.30-1.el7, rh-php71-php-gd 7.1.30-1.el7, rh-php71-php-cli 7.1.30-1.el7, rh-php71-php-dba 7.1.30-1.el7, rh-php71-php-dbg 7.1.30-1.el7, rh-php71-php-fpm 7.1.30-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-php71-php 7.1.30-1.el7, rh-php71-php-gd 7.1.30-1.el7, rh-php71-php-cli 7.1.30-1.el7, rh-php71-php-dba 7.1.30-1.el7, rh-php71-php-dbg 7.1.30-1.el7, rh-php71-php-fpm 7.1.30-1.el7, +22 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php71-php 7.1.30-1.el7, rh-php71-php-gd 7.1.30-1.el7, rh-php71-php-cli 7.1.30-1.el7, rh-php71-php-dba 7.1.30-1.el7, rh-php71-php-dbg 7.1.30-1.el7, rh-php71-php-fpm 7.1.30-1.el7, +22 more
    fixed: vendor fix RHSA-2019:2519
  • Red Hat Enterprise Linux 8 php, libzip, php-gd, php-cli, php-dba, php-dbg, +30 more Red Hat Software Collections rh-php72-php, rh-php72-php-gd, rh-php72-php-cli, rh-php72-php-dba, rh-php72-php-dbg, rh-php72-php-fpm, +22 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-26-027-02 updated cvss 6.1

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

4.10% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Apache2 - Transfer-Encoding Chunked XSS nuclei detection template
  • bugs.php.net https://bugs.php.net/bug.php?id=76582 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.