Security Digest · Vulnerability record

CVE-2024-22533: Beetl Server-Side Template Injection vulnerability

Before Beetl v3.15.12, the rendering template has a server-side template injection (SSTI) vulnerability.

CVSS 9.8 Critical EPSS 1.0% · p63

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

  • No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
  • EPSS 1.0%, percentile 63: FIRST’s model estimates a 1.0% chance of exploitation activity in the next 30 days, higher than 63% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
  • Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
  • Only applies if your dependency tree includes com.ibeetl:beetl-core (Maven) < 3.15.13.RELEASE, fixed in 3.15.13.RELEASE. Check your lockfile, including transitive dependencies.

What it is

Before Beetl v3.15.12, the rendering template has a server-side template injection (SSTI) vulnerability. When the incoming template is controllable, it will be filtered by the DefaultNativeSecurityManager blacklist. Because blacklist filtering is not strict, the blacklist can be bypassed, leading to arbitrary code execution.

From the GitHub advisory

Before Beetl v3.15.13.RELEASE, the rendering template has a server-side template injection (SSTI) vulnerability. When the incoming template is controllable, it will be filtered by the DefaultNativeSecurityManager blacklist. Because blacklist filtering is not strict, the blacklist can be bypassed, leading to arbitrary code execution.

Weakness type: CWE-94.

Product: com.ibeetl:beetl-core (Maven) · Assigned by: mitre · Published: 2024-02-02

Affected and fixed versions

EcosystemPackageVulnerableFirst fixed
Mavencom.ibeetl:beetl-core< 3.15.13.RELEASE3.15.13.RELEASE
VendorProductAffected versions (per CVE record)
n/an/asee vendor advisory

Severity scores

Scored byCVSSScoreVector
CISA-ADP3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub3.19.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack vector: network (remotely reachable)
  • Attack complexity: low
  • Privileges required: none (no login)
  • User interaction: none
  • Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

  • CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
  • CISA SSVC assessment: exploitation none, automatable no, technical impact total.
  • FIRST EPSS (model of 2026-10-21): 1.03% probability of exploitation activity in the next 30 days; percentile 63.

Timeline

  • — CVE record published by mitre
  • — GitHub-reviewed advisory GHSA-9gh8-877r-g477 published (critical)
  • — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

  1. GitHub Advisory GHSA-9gh8-877r-g477 github.com
  2. CVE.org record CVE-2024-22533 cve.org
  3. NVD entry CVE-2024-22533 nvd.nist.gov

Other references from the CVE record and advisory

  1. gitee.com gitee.com

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