Security Resilience

CVE-2023-26055

Xwiki Commons 3.2 – 13.10.9

Public PoC
Published
02 March 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 9.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.012 67th percentile
Risk Priority 75 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-26055 is a critical-severity Improper Neutralization of Escape, Meta, or Control Sequences (CWE-150) vulnerability in Xwiki Commons. Its CVSS base score is 9.9 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked in the top 33% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

XWiki Commons, the shared technical libraries used across multiple XWiki projects, contain an improper neutralization flaw (CWE-150) that permits stored code injection. The issue affects all versions starting from 3.1-milestone-1 and manifests when short text properties are rendered, including user profile pages and any application built with Apps Within Minutes that employs a short text field.

Any authenticated user with permission to edit their own profile or comparable short text fields can supply malicious code that executes with programming rights. Because the vulnerability is exploitable over the network with low attack complexity and no user interaction, an attacker can achieve full confidentiality, integrity, and availability impact within the affected XWiki instance, including scope change to other components.

Public advisories hosted on GitHub and the corresponding XWiki JIRA issues (XCOMMONS-2498, XWIKI-19793, XWIKI-19794) state that the flaw is resolved in releases 13.10.9, 14.4.4, and 14.7RC1; administrators are advised to upgrade to one of these versions.

EPSS scores have remained low, moving only from a peak of 0.0505 to a current value of 0.0490, indicating limited observed exploitation interest since disclosure.

EU & UK References

Vulnerability Data

XWiki Commons are technical libraries common to several other top level XWiki projects. Starting in version 3.1-milestone-1, any user can edit their own profile and inject code, which is going to be executed with programming right. The same vulnerability can…

more

also be exploited in all other places where short text properties are displayed, e.g., in apps created using Apps Within Minutes that use a short text field. The problem has been patched on versions 13.10.9, 14.4.4, 14.7RC1.

CWE(s)
CWE-150NVD-CWE-Other

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
attack.mitre.org →
T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
attack.mitre.org →
T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-29528Same product: Xwiki Commons
CVE-2023-36471Same product: Xwiki Commons
CVE-2023-35158Same vendor: Xwiki
CVE-2026-49147Shared CWE-150
CVE-2024-28085Shared CWE-150
CVE-2024-33899Shared CWE-150
CVE-2026-25996Shared CWE-150
CVE-2024-58251Shared CWE-150
CVE-2024-36052Shared CWE-150
CVE-2024-43785Shared CWE-150

Affected Assets

xwiki
commons
14.4, 3.1, 3.1.1 · 3.2 — 13.10.9 · 14.4 — 14.4.4 · 14.5 — 14.7

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.10
  • V1.3.12

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 partial match
blocks

Secure SDLC practices directly require input neutralization and escaping to prevent this class of flaw.

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.

A.6.6 Confidentiality or non-disclosure agreements partial match
removes
A.8.19 Installation of software on operational systems partial match
removes
A.8.25 Secure development life cycle partial match
blocks

A.8.25 mandates secure SDLC practices including secure coding guidelines, security requirements, checkpoints, testing (scans/penetration), and developer training that reach escape/sequence neutralization; this prevents exploitation for many instances but leaves a bounded remainder where implementation is incomplete or the specific sequences are missed.

A.8.26 Application security requirements partial match
blocks

A.8.26 requires identifying and specifying requirements including resilience against SQL injections, input validation, and output controls (items d, j, l, m, n), which when addressed stop exploitation of unneutralized escape sequences; this covers only a minority slice of CWE-150's broader meta/control sequences and downstream contexts, with the bulk left to implementation details in other controls.

A.8.27 Secure system architecture and engineering principles partial match
blocks

A.8.27 mandates security-by-design principles including data validation/sanitization, distrusting external input, and design reviews against attack patterns, which reaches a minority slice of improper neutralization (e.g. via secure architecture and hardening) but leaves most instances of missing or incorrect escaping in downstream components unaddressed.

A.8.28 Secure coding partial match
prevents

Secure coding standards require proper escaping and neutralization of control characters before downstream processing.

References