Every CVE Search/ Get API key

CVE-2026-47730

Twig: XSS in profiler HtmlDumper via unescaped template and profile names

5.1 MediumFix available

Twig is a template language for PHP. From 3.0.0 until 3.26.0, Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() into HTML output without escaping, allowing attacker-controlled template or profile names to inject arbitrary HTML when a browser renders the profiler dump. This issue is fixed in version 3.26.0.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
Passive

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
None

Exploit likelihood

0.29%Up 0.3 points since Jun 12, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.1

Twig: XSS in profiler HtmlDumper via unescaped template and profile names

Twig is a template language for PHP. From 3.0.0 until 3.26.0, Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() into HTML output without escaping, allowing attacker-controlled template or profile names to inject arbitrary HTML when a browser renders the profiler dump. This issue is fixed in version 3.26.0.

Record
CVE-2026-47730
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2026-44567 5.1

Twig is a template language for PHP. From 3.0.0 until 3.26.0, Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() into HTML output without escaping, allowing attacker-controlled template or profile names to inject arbitrary HTML when a browser renders the profiler dump. This issue is fixed in version 3.26.0.

Record
EUVD-2026-44567
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-2g2g-8p8h-fgwm No score

Twig: XSS in profiler HtmlDumper via unescaped template and profile names

Description

Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() straight into its HTML output without escaping:

protected function formatTemplate(Profile $profile, $prefix): string
{
    return \sprintf('%s└ <span style="background-color: %s">%s</span>', $prefix, self::$colors['template'], $profile->getTemplate());
}

The template name comes from the loader (the array key for ArrayLoader, a row id for a database-backed loader, etc.). When that name is attacker-controlled, the profiler dump emits arbitrary HTML, and any browser that renders it executes the injected markup. This is an output-encoding bug in profiler/debug tooling, not a sandbox escape.

Resolution

HtmlDumper now runs both Profile::getTemplate() and Profile::getName() through htmlspecialchars() before inserting them into the HTML output.

Credits

Twig would like to thank El Kharoubi Iosif for reporting the issue and Nicolas Grekas for fixing it.

Record
GHSA-2g2g-8p8h-fgwm
Weakness
CWE-79
Updated
2026-11-02
NVD 5.1

Twig is a template language for PHP. From 3.0.0 until 3.26.0, Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() into HTML output without escaping, allowing attacker-controlled template or profile names to inject arbitrary HTML when a browser renders the profiler dump. This issue is fixed in version 3.26.0.

Record
CVE-2026-47730
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 5.1

Twig: XSS in profiler HtmlDumper via unescaped template and profile names

Twig is a template language for PHP. From 3.0.0 until 3.26.0, Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() into HTML output without escaping, allowing attacker-controlled template or profile names to inject arbitrary HTML when a browser renders the profiler dump. This issue is fixed in version 3.26.0.

Record
CVE-2026-47730
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Weakness
CWE-79
Updated
2026-11-02
OSVDEBIAN-CVE-2026-47730 5.4

Twig is a template language for PHP. From 3.0.0 until 3.26.0, Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() into HTML output without escaping, allowing attacker-controlled template or profile names to inject arbitrary HTML when a browser renders the profiler dump. This issue is fixed in version 3.26.0.

Record
DEBIAN-CVE-2026-47730
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
Show 5 moreShow less
OSVUBUNTU-CVE-2026-47730 5.1

Twig is a template language for PHP. From 3.0.0 until 3.26.0, Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() into HTML output without escaping, allowing attacker-controlled template or profile names to inject arbitrary HTML when a browser renders the profiler dump. This issue is fixed in version 3.26.0.

Record
UBUNTU-CVE-2026-47730
CVSS 4.0
5.1 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVCLSA-2026-1793788688 No score

TuxCare security update for twig/twig (1 CVE)

TuxCare rebuilt twig/twig to address 1 CVE. Fixed in v1.44.8-p3+tuxcare.

Record
CLSA-2026-1793788688
Updated
2026-11-04
OSVCLSA-2026-1793789212 No score

TuxCare security update for twig/twig (1 CVE)

TuxCare rebuilt twig/twig to address 1 CVE. Fixed in v2.15.6-p3+tuxcare.

Record
CLSA-2026-1793789212
Updated
2026-11-04
OSVCLSA-2026-1793789309 No score

TuxCare security update for twig/twig (2 CVEs)

TuxCare rebuilt twig/twig to address 2 CVEs. Fixed in v2.16.1-p3+tuxcare.

Record
CLSA-2026-1793789309
Updated
2026-11-04
OSVGHSA-2g2g-8p8h-fgwm No score

Twig: XSS in profiler HtmlDumper via unescaped template and profile names

Description

Twig\Profiler\Dumper\HtmlDumper writes Profile::getTemplate() and Profile::getName() straight into its HTML output without escaping:

protected function formatTemplate(Profile $profile, $prefix): string
{
    return \sprintf('%s└ <span style="background-color: %s">%s</span>', $prefix, self::$colors['template'], $profile->getTemplate());
}

The template name comes from the loader (the array key for ArrayLoader, a row id for a database-backed loader, etc.). When that name is attacker-controlled, the profiler dump emits arbitrary HTML, and any browser that renders it executes the injected markup. This is an output-encoding bug in profiler/debug tooling, not a sandbox escape.

Resolution

HtmlDumper now runs both Profile::getTemplate() and Profile::getName() through htmlspecialchars() before inserting them into the HTML output.

Credits

Twig would like to thank El Kharoubi Iosif for reporting the issue and Nicolas Grekas for fixing it.

Record
GHSA-2g2g-8p8h-fgwm
Weakness
CWE-79
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
twig/twig
Packagist
 3.0.0 up to 3.26.0
3.26.0
twig/twig
TuxCare:Packagist
 v1.44.8 up to v1.44.8-p3+tuxcare, plus listed versions
v1.44.8-p1+tuxcarev1.44.8-p2+tuxcare
v1.44.8-p3+tuxcare
twig/twig
TuxCare:Packagist
 v2.15.6 up to v2.15.6-p3+tuxcare, plus listed versions
v2.15.6-p1+tuxcarev2.15.6-p2+tuxcare
v2.15.6-p3+tuxcare
twig/twig
TuxCare:Packagist
From an advisory covering 2 CVEs
 v2.16.1 up to v2.16.1-p3+tuxcare, plus listed versions
v2.16.1-p1+tuxcarev2.16.1-p2+tuxcare
v2.16.1-p3+tuxcare
php-twig
Debian:12
 before 3.5.1-1+deb12u3, plus listed versions
3.5.1-13.5.1-1+deb12u13.5.1-1+deb12u2
3.5.1-1+deb12u3
php-twig
Debian:13
 before 3.27.0-0+deb13u1, plus listed versions
3.20.0-23.21.1-13.21.1-23.21.1-33.22.0-1
Show 11 moreShow less
3.22.0-23.22.1-13.22.1-23.22.1-33.22.2-13.22.2-23.23.0-13.23.0-23.24.0-13.26.0-0+deb13u13.26.0-1
3.27.0-0+deb13u1
php-twig
Debian:14
 before 3.26.0-1, plus listed versions
3.20.0-23.21.1-13.21.1-23.21.1-33.22.0-1
Show 9 moreShow less
3.22.0-23.22.1-13.22.1-23.22.1-33.22.2-13.22.2-23.23.0-13.23.0-23.24.0-1
3.26.0-1
twig/twig
Packagist
 3.0.0 up to 3.26.0, plus listed versions
v3.0.0v3.0.1v3.0.2v3.0.3v3.0.4
Show 45 moreShow less
v3.0.5v3.1.0v3.1.1v3.10.0v3.10.1v3.10.2v3.10.3v3.11.0v3.11.1v3.11.2v3.11.3v3.12.0v3.13.0v3.14.0v3.14.1v3.14.2v3.15.0v3.16.0v3.17.0v3.17.1v3.18.0v3.19.0v3.2.1v3.20.0v3.21.0v3.21.1v3.22.0v3.22.1v3.22.2v3.23.0v3.24.0v3.25.0v3.3.0v3.3.1v3.3.10v3.3.2v3.3.3v3.3.4v3.3.5v3.3.6v3.3.7v3.3.8v3.3.9v3.4.0v3.4.1
3.26.0
php-twig
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
2.11.3-22.12.1-12.12.2-12.12.3-12.12.5-12.12.5-1ubuntu0.1~esm12.12.5-1ubuntu0.1~esm2
 None known
php-twig
Ubuntu:Pro:22.04:LTS
 All versions, plus listed versions
3.3.2-1ubuntu33.3.4-13.3.6-13.3.7-13.3.8-2ubuntu43.3.8-2ubuntu4+esm13.3.8-2ubuntu4+esm2
 None known
Show 4 moreShow less
Affected packages
PackageAffectedFixed
php-twig
Ubuntu:Pro:24.04:LTS
 All versions, plus listed versions
3.7.0-13.7.1-13.8.0-23.8.0-2ubuntu0.1~esm13.8.0-2ubuntu13.8.0-2ubuntu1+esm1
 None known
php-twig
Ubuntu:25.10
 All versions, plus listed versions
3.20.0-2ubuntu1
 None known
php-twig
Ubuntu:26.10
 All versions, plus listed versions
3.23.0-2build73.27.1-13.28.0-1
 None known
php-twig
Ubuntu:Pro:26.04:LTS
 All versions, plus listed versions
3.20.0-2ubuntu13.23.0-2build53.23.0-2build73.23.0-2ubuntu0.1~esm1
 None known

History

History
RecordedChangedSources
affected
affected, aliases, factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2026-47730 is a medium vulnerability (CVSS 5.1) in Symfony Twig, published June 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 22nd percentile. Fixed in twig/twig 3.26.0.

References

Show 7 moreShow less
This page doesn't list everything

Left out here: 13 versions. The JSON record has them.

Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open