How severe is CVE-2023-3580?

CVE-2023-3580 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-3580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3580?

CVE-2023-3580 affects Squidex.io Squidex. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3580?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-3580 published?

CVE-2023-3580 was published on 2023-07-10 and last updated on 2026-06-17.

CVE-2023-3580

CVE-2023-3580 is a medium-severity vulnerability in Squidex.io Squidex with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-167.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-167
Affected product: Squidex.io Squidex
Published: 2023-07-10
Last modified: 2026-06-17

Description

Improper Handling of Additional Special Element in GitHub repository squidex/squidex prior to 7.4.0.

Frequently asked questions

What is CVE-2023-3580?: Improper Handling of Additional Special Element in GitHub repository squidex/squidex prior to 7.4.0.
How severe is CVE-2023-3580?: CVE-2023-3580 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-3580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3580?: CVE-2023-3580 affects Squidex.io Squidex. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3580?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3580 published?: CVE-2023-3580 was published on 2023-07-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:squidex.io:squidex:*:*:*:*:*:*:*:*

More vulnerabilities in Squidex.io Squidex

CVE-2026-24736 — Critical (CVSS 9.1): Squidex is an open source headless content management system and content management hub. Versions of the application up…
CVE-2023-46253 — Critical (CVSS 9.1): Squidex is an open source headless CMS and content management hub. Affected versions are subject to an arbitrary file…
CVE-2023-46252 — Medium (CVSS 6.8): Squidex is an open source headless CMS and content management hub. Affected versions are missing origin verification in…
CVE-2023-0642 — Medium (CVSS 6.5): Cross-Site Request Forgery (CSRF) in GitHub repository squidex/squidex prior to 7.4.0.
CVE-2023-24278 — Medium (CVSS 6.1): Squidex before 7.4.0 was discovered to contain a squid.svg cross-site scripting (XSS) vulnerability.
CVE-2023-0643 — Medium (CVSS 6.1): Improper Handling of Additional Special Element in GitHub repository squidex/squidex prior to 7.4.0.

All CVEs affecting Squidex.io Squidex →

Other CWE-167 vulnerabilities

CVE-2025-30656 — High (CVSS 7.5): An Improper Handling of Additional Special Element vulnerability in the Packet Forwarding Engine (PFE) of Juniper…
CVE-2023-4809 — High (CVSS 7.5): In pf packet processing with a 'scrub fragment reassemble' rule, a packet containing multiple IPv6 fragment headers…
CVE-2023-0643 — Medium (CVSS 6.1): Improper Handling of Additional Special Element in GitHub repository squidex/squidex prior to 7.4.0.
CVE-2025-25006 — Medium (CVSS 5.3): Improper handling of additional special element in Microsoft Exchange Server allows an unauthorized attacker to perform…

Browse all CWE-167 vulnerabilities →