CVE-2015-7773: Unrestricted file upload vulnerability in the Panel component in Bastian Allgeier Kirby before 2.1.2 allows re

Q: How do I fix CVE-2015-7773?

kirby: upgrade to newer than 2.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2015-7773 being exploited?

CVE-2015-7773 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-2015-7773 affect?

CVE-2015-7773 affects kirby. Severity is medium (CVSS 6.5). Unrestricted file upload vulnerability in the Panel component in Bastian Allgeier Kirby before 2.1.2 allows remote authenticated users to execute arbitrary PHP code by uploading a file that lacks an extension, and then renaming this file to

Q: How urgent is CVE-2015-7773?

Priority 40/100. No elevated risk signals yet.

This month

MEDIUM 6.5UPGRADE

CVE-2015-7773 is a medium-severity flaw (CVSS 6.5) affecting kirby. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted file upload vulnerability in the Panel component in Bastian Allgeier Kirby before 2.1.2 allows remote authenticated users to execute arbitrary PHP code by uploading a file that lacks an extension, and then renaming this file to have a .php extension.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Published	2015-11-20
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: bastian allgeier

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

Am I affected?

Timeline

2015-11-20 03:59 UTCPublished CVE record published
2026-06-17 00:33 UTCUpdated Record last modified

bastian allgeier kirby UPGRADE

Affected: <= 2.1.1

Fixed in: newer than 2.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.1.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kirby

Note

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

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-2015-7773?

kirby: upgrade to newer than 2.1.1. Exact commands for each OS are on this page.

Is CVE-2015-7773 being exploited?

CVE-2015-7773 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-2015-7773 affect?

CVE-2015-7773 affects kirby. Severity is medium (CVSS 6.5). Unrestricted file upload vulnerability in the Panel component in Bastian Allgeier Kirby before 2.1.2 allows remote authenticated users to execute arbitrary PHP code by uploading a file that lacks an extension, and then renaming this file to

How urgent is CVE-2015-7773?

Priority 40/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

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CVE-2026-34587 HIGH 8.1 UPGRADE Kirby is an open-source content management system
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References

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