CVE-2023-26265: The Borg theme before 1.1.19 for Backdrop CMS does not sufficiently sanitize path arguments that are passed in

Q: How do I fix CVE-2023-26265?

borg: upgrade to 1.1.19. Exact commands for each OS are on this page.

Q: Is CVE-2023-26265 being exploited?

CVE-2023-26265 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-2023-26265 affect?

CVE-2023-26265 affects borg. Severity is medium (CVSS 5.3). The Borg theme before 1.1.19 for Backdrop CMS does not sufficiently sanitize path arguments that are passed in via a URL. The function borg_preprocess_page in the file template.php does not properly sanitize incoming path arguments before u

Q: How urgent is CVE-2023-26265?

Priority 35/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2023-26265 is a medium-severity flaw (CVSS 5.3) affecting borg. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Borg theme before 1.1.19 for Backdrop CMS does not sufficiently sanitize path arguments that are passed in via a URL. The function borg_preprocess_page in the file template.php does not properly sanitize incoming path arguments before using them.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-22
Published	2023-02-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: borg project

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

Am I affected?

Timeline

2023-02-21 04:15 UTCPublished CVE record published
2026-06-17 05:42 UTCUpdated Record last modified

borg project borg UPGRADE

Affected: < 1.1.19

Fixed in: 1.1.19

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.1.19 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade borg

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-2023-26265?

borg: upgrade to 1.1.19. Exact commands for each OS are on this page.

Is CVE-2023-26265 being exploited?

CVE-2023-26265 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-2023-26265 affect?

CVE-2023-26265 affects borg. Severity is medium (CVSS 5.3). The Borg theme before 1.1.19 for Backdrop CMS does not sufficiently sanitize path arguments that are passed in via a URL. The function borg_preprocess_page in the file template.php does not properly sanitize incoming path arguments before u

How urgent is CVE-2023-26265?

Priority 35/100. Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2023-36811 MEDIUM 4.7 UPGRADE borgbackup is an opensource, deduplicating archiver with compression and authenticated encryption

References

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