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CVE-2023-38488

23
FAUCET Score

CVE-2023-38488 is a high-severity field injection vulnerability in the Kirby CMS, affecting versions prior to 3.5.8.3, 3.6.6.3, 3.7.5.2, 3.8.4.1, and 3.9.6. This flaw allows authenticated attackers or external users with content write access to overwrite unintended content fields by manipulating Unicode BOM sequences within field separators. With a CVSS score of 8.8, successful exploitation can lead to altered site content, broken site behavior, or the injection of malicious data or code. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.5.0, < 3.5.8.3CPE matchmatch criteria
cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*
>= 3.6.0, < 3.6.6.3CPE matchmatch criteria
cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*
>= 3.7.0, < 3.7.5.2CPE matchmatch criteria
cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*
>= 3.8.0, < 3.8.4.1CPE matchmatch criteria
cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*
>= 3.9.0, < 3.9.6CPE matchmatch criteria
cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 47th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

composerpatch availablevia ghsa
Product: getkirby/cmsFixed in: 3.5.8.3
composerpatch availablevia ghsa
Product: getkirby/cmsFixed in: 3.6.6.3
composerpatch availablevia ghsa
Product: getkirby/cmsFixed in: 3.7.5.2
composerpatch availablevia ghsa
Product: getkirby/cmsFixed in: 3.8.4.1
composerpatch availablevia ghsa
Product: getkirby/cmsFixed in: 3.9.6
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-x5mr-p6v4-wp93high

Field injection in the KirbyData text storage handler

Jul 28, 2023

References

github.com / getkirby/kirby/commit/a1e0f81c799ddae1af91cf37216f8ded9cb93540
PatchThird Party Advisory
github.com / getkirby/kirby/releases/tag/3.5.8.3
Third Party Advisory
github.com / getkirby/kirby/releases/tag/3.6.6.3
Third Party Advisory
github.com / getkirby/kirby/releases/tag/3.7.5.2
Third Party Advisory
github.com / getkirby/kirby/releases/tag/3.8.4.1
Third Party Advisory
github.com / getkirby/kirby/releases/tag/3.9.6
Third Party Advisory
github.com / getkirby/kirby/security/advisories/GHSA-x5mr-p6v4-wp93
Third Party Advisory