Cyber Resilience

CVE-2024-24818

Open Redirect in Espocrm ≤ 8.1.2

Public PoCOpen Redirect
Published
21 March 2024
Modified
17 June 2026
Patch / advisory
CVSS Score v3.1 5.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:L
EPSS Score 0.0062 46th percentile
Risk Priority 46 floored blend · peak EPSS

Summary

CVE-2024-24818 is a medium-severity Externally Controlled Reference to a Resource in Another Sphere (CWE-610) vulnerability in Espocrm Espocrm. Its CVSS base score is 5.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data from Local System (T1005); ranked at the 46th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

EspoCRM is an Open Source Customer Relationship Management software. An attacker can inject arbitrary IP or domain in "Password Change" page and redirect victim to malicious page that could lead to credential stealing or another attack. This vulnerability is fixed…

more

in 8.1.2.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
T1083 File and Directory Discovery Discovery
Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
T1566 Phishing Initial Access
Adversaries may send phishing messages to gain access to victim systems.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-33733Same product: Espocrm Espocrm
CVE-2026-33740Same product: Espocrm Espocrm
CVE-2023-46736Same product: Espocrm Espocrm
CVE-2025-52575Same product: Espocrm Espocrm
CVE-2026-33534Same product: Espocrm Espocrm
CVE-2026-33656Same product: Espocrm Espocrm
CVE-2025-52892Same product: Espocrm Espocrm
CVE-2020-37094Same product: Espocrm Espocrm
CVE-2026-33659Same product: Espocrm Espocrm
CVE-2023-5966Same product: Espocrm Espocrm

Affected Assets

espocrm
espocrm
≤ 8.1.2

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 3 hardening rules · 2 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V3.7.2

Mitigating Controls (NIST 800-53 r5) AI

Enforces access authorizations so externally supplied references cannot reach resources outside the intended sphere.

Controls information flow between security domains, blocking resolution of external references to unintended spheres.

Validates information inputs, directly stopping externally controlled names or references from being accepted.

Monitors and controls boundary communications, limiting the ability of external references to reach protected resources.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly require input validation and reference sanitization that prevent externally-controlled resource references.

DE.CM-09 partial match
prevents

Runtime monitoring of software and data flows can detect anomalous external resource accesses that result from this weakness.

PR.IR-01 partial match
prevents

Network segmentation and access controls limit the blast radius when an external reference escapes its intended sphere.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing can detect instances of the weakness but does not prevent it at design or coding time.

mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

prevents

Secure development lifecycle mandates validation of all external references to prevent uncontrolled resource access.

prevents

Application security requirements explicitly call for controls against externally supplied resource identifiers.

prevents

Secure architecture principles reduce the attack surface for externally controlled references but do not prescribe specific validation rules.

prevents

Secure coding standards require input validation and canonicalization to block externally controlled resource references.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 8 (1 rule)
  • V-248577 OL 8 must enable kernel parameters to enforce Discretionary Access Control (DAC) on symlinks. prevents CWE-610

References