CVE-2016-10510: Cross-site scripting (XSS) vulnerability in the Security component of Kohana before 3.3.6 allows remote attack

Q: How do I fix CVE-2016-10510?

kohana: upgrade to newer than 3.3.5; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2016-10510 being exploited?

CVE-2016-10510 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2016-10510 affect?

CVE-2016-10510 affects kohana, debian linux. Severity is medium (CVSS 6.1). Cross-site scripting (XSS) vulnerability in the Security component of Kohana before 3.3.6 allows remote attackers to inject arbitrary web script or HTML by bypassing the strip_image_tags protection mechanism in system/classes/Kohana/Securit

Q: How urgent is CVE-2016-10510?

Priority 51/100. Public exploit reference; On your watchlist

This month

MEDIUM 6.1WATCHLISTUPGRADEMITIGATE

CVE-2016-10510 is a medium-severity flaw (CVSS 6.1) affecting kohana, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the Security component of Kohana before 3.3.6 allows remote attackers to inject arbitrary web script or HTML by bypassing the strip_image_tags protection mechanism in system/classes/Kohana/Security.php.

Why this priority

Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-08-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · kohanaframework

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-08-31 20:29 UTCPublished CVE record published
2026-06-17 00:39 UTCUpdated Record last modified

kohanaframework kohana UPGRADE

Affected: <= 3.3.5

Fixed in: newer than 3.3.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy kohana || rpm -q kohana || kohana --version

2. UPGRADE to newer than 3.3.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kohana

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kohana

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

debian debian linux MITIGATE

Affected: 7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-10510?

kohana: upgrade to newer than 3.3.5; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-10510 being exploited?

CVE-2016-10510 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-10510 affect?

CVE-2016-10510 affects kohana, debian linux. Severity is medium (CVSS 6.1). Cross-site scripting (XSS) vulnerability in the Security component of Kohana before 3.3.6 allows remote attackers to inject arbitrary web script or HTML by bypassing the strip_image_tags protection mechanism in system/classes/Kohana/Securit

How urgent is CVE-2016-10510?

Priority 51/100. Public exploit reference; On your watchlist

Software pages

PHP vulnerabilities · Debian vulnerabilities

Related CVEs

CVE-2014-8684 CRITICAL 9.8 UPGRADE DOWNGRADE CodeIgniter before 3.0 and Kohana 3.2.3 and earlier and 3.3.x through 3.3.2 make it easier for remote attacker

References

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