How severe is CVE-2023-4893?

CVE-2023-4893 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-4893 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4893?

CVE-2023-4893 affects Aramk Crayon-syntax-highlighter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4893?

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

When was CVE-2023-4893 published?

CVE-2023-4893 was published on 2023-09-12 and last updated on 2026-06-17.

CVE-2023-4893

CVE-2023-4893 is a medium-severity vulnerability in Aramk Crayon-syntax-highlighter with a CVSS 3.x base score of 6.4. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Aramk Crayon-syntax-highlighter
Published: 2023-09-12
Last modified: 2026-06-17

Description

The Crayon Syntax Highlighter plugin for WordPress is vulnerable to Server Side Request Forgery via the 'crayon' shortcode in versions up to, and including, 2.8.4. This can allow authenticated attackers with contributor-level permissions or above to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

Frequently asked questions

What is CVE-2023-4893?: The Crayon Syntax Highlighter plugin for WordPress is vulnerable to Server Side Request Forgery via the 'crayon' shortcode in versions up to, and including, 2.8.4. This can allow authenticated attackers with contributor-level permissions or above to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
How severe is CVE-2023-4893?: CVE-2023-4893 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-4893 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4893?: CVE-2023-4893 affects Aramk Crayon-syntax-highlighter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4893?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4893 published?: CVE-2023-4893 was published on 2023-09-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:aramk:crayon-syntax-highlighter:*:*:*:*:*:wordpress:*:*

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities

CVE-2026-47938 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by a Server-Side Request Forgery (SSRF)…
CVE-2026-35431 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Entra ID Entitlement Management allows an unauthorized attacker to…
CVE-2026-32186 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to elevate privileges over a…
CVE-2026-33107 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure Databricks allows an unauthorized attacker to elevate privileges over a…
CVE-2026-32871 — Critical (CVSS 10.0): FastMCP is a Pythonic way to build MCP servers and clients. Prior to version 3.2.0, the OpenAPIProvider in FastMCP…
CVE-2026-32169 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure Cloud Shell allows an unauthorized attacker to elevate privileges over a…

Browse all CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities →