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CVE-2023-26479— org.xwiki.platform:xwiki-platform-rendering-parser vulnerable to Improper Handling of Exceptional Conditions

Quick assessment

Affected
xwiki xwiki-platform
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

XWiki Platform是法国XWiki公司的一套用于创建Web协作应用程序的Wiki平台。 XWiki Platform存在安全漏洞，该漏洞源于具有写入权限的用户可以插入格式正确但解析器无法正确处理的内容，攻击者利用该漏洞可以触发堆栈溢出。

CVSS 6.5 · Medium EPSS 1.08% · P64

Possible ATT&CK Techniques 1 AI

T1565.001 · Stored Data Manipulation
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I. Basic Information for CVE-2023-26479

Vulnerability Information
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Vulnerability Title
org.xwiki.platform:xwiki-platform-rendering-parser vulnerable to Improper Handling of Exceptional Conditions
Source: CVE Program / CVE List V5
Vulnerability Description
XWiki Platform is a generic wiki platform. Starting in version 6.0, users with write rights can insert well-formed content that is not handled well by the parser. As a consequence, some pages becomes unusable, including the user index (if the page containing the faulty content is a user page) and the page index. Note that on the page, the normal UI is completely missing and it is not possible to open the editor directly to revert the change as the stack overflow is already triggered while getting the title of the document. This means that it is quite difficult to remove this content once inserted. This has been patched in XWiki 13.10.10, 14.4.6, and 14.9-rc-1. A temporary workaround to avoid Stack Overflow errors is to increase the memory allocated to the stack by using the `-Xss` JVM parameter (e.g., `-Xss32m`). This should allow the parser to pass and to fix the faulty content. The consequences for other aspects of the system (e.g., performance) are unknown, and this workaround should be only be used as a temporary solution. The workaround does not prevent the issue occurring again with other content. Consequently, it is strongly advised to upgrade to a version where the issue has been patched.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
XWiki Platform 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XWiki Platform是法国XWiki公司的一套用于创建Web协作应用程序的Wiki平台。 XWiki Platform存在安全漏洞，该漏洞源于具有写入权限的用户可以插入格式正确但解析器无法正确处理的内容，攻击者利用该漏洞可以触发堆栈溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
xwiki xwiki-platform >= 6.0, < 13.10.10 -

II. Public POCs for CVE-2023-26479

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III. Intelligence Information for CVE-2023-26479

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Patches & Fixes for CVE-2023-26479 (1)

Vendor Advisories for CVE-2023-26479 (1)

Other References for CVE-2023-26479 (1)

Same Patch Batch · xwiki · 2023-03-02 · 13 CVEs total

CVE-2023-26055 10.0 CRITICAL XWiki Commons may allow privilege escalation to programming rights via user's first name
CVE-2023-26471 10.0 CRITICAL XWiki Platform users may execute anything with superadmin right through comments and async
CVE-2023-26472 10.0 CRITICAL XWiki Platform vulnerable to privilege escalation via async macro and IconThemeSheet from
CVE-2023-26474 10.0 CRITICAL XWiki Platform vulnerable to privilege escalation via properties with wiki syntax that are
CVE-2023-26475 10.0 CRITICAL XWiki Platform vulnerable to Remote Code Execution in Annotations
CVE-2023-26477 10.0 CRITICAL org.xwiki.platform:xwiki-platform-flamingo-theme-ui Eval Injection vulnerability
CVE-2023-26480 8.9 HIGH XWiki-Platform vulnerable to stored Cross-site Scripting via the HTML displayer in Live Da
CVE-2023-26476 7.5 HIGH Two XWiki Platform UIs Expose Sensitive Information to an Unauthorized Actor
CVE-2023-26478 6.6 MEDIUM org.xwiki.platform:xwiki-platform-store-filesystem-oldcore has Exposed Dangerous Method or
CVE-2023-26473 6.5 MEDIUM XWiki Platform allows unprivileged users to make arbitrary select queries using DatabaseLi
CVE-2023-26470 5.7 MEDIUM In XWiki Platform, saving a document with a large object number leads to persistent OOM er
CVE-2023-26056 5.4 MEDIUM XWiki Platform allows macro execution as any user without programming rights through the c

IV. Related Vulnerabilities

Same product: xwiki-platform
Same vendor: xwiki
Same weakness: CWE-755

V. Comments for CVE-2023-26479

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