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CVE-2026-39897— Cacti has a Reflected XSS Vulnerability via html_auth_footer

Quick assessment

Affected
Cacti cacti
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.

Cacti是Cacti团队开源的一套开源的网络流量监测和分析工具。该工具通过snmpget来获取数据,使用RRDtool绘画图形进行分析,并提供数据和用户管理功能。 Cacti 1.2.30及之前版本存在跨站脚本漏洞，该漏洞源于html_auth_footer存在反射型跨站脚本漏洞，可能允许攻击者注入恶意脚本。

AI Predicted 5.4 Difficulty: Easy EPSS 0.26% · P17

Affected Version Matrix 1

VendorProduct Version RangeStatus
Cacti cacti < 1.2.31 affected
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I. Basic Information for CVE-2026-39897

Vulnerability Information
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Vulnerability Title
Cacti has a Reflected XSS Vulnerability via html_auth_footer
Source: CVE Program / CVE List V5
Vulnerability Description
Cacti is an open source performance and fault management framework. Versions 1.2.30 and below contain a Reflected XSS vulnerability in the html_auth_footer. This issue has been fixed in version 1.2.31.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Cacti 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cacti是Cacti团队开源的一套开源的网络流量监测和分析工具。该工具通过snmpget来获取数据,使用RRDtool绘画图形进行分析,并提供数据和用户管理功能。 Cacti 1.2.30及之前版本存在跨站脚本漏洞，该漏洞源于html_auth_footer存在反射型跨站脚本漏洞，可能允许攻击者注入恶意脚本。
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
Cacti cacti < 1.2.31 -

II. Public POCs for CVE-2026-39897

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III. Intelligence Information for CVE-2026-39897

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Patches & Fixes for CVE-2026-39897 (1)

Vendor Advisories for CVE-2026-39897 (1)

Same Patch Batch · Cacti · 2026-06-24 · 10 CVEs total

CVE-2026-39955 9.8 CRITICAL Cacti has Pre-Authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph
CVE-2026-39893 9.8 CRITICAL Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php
CVE-2026-39938 9.8 CRITICAL Cacti: Unauthenticated RCE on Graph Image
CVE-2026-39951 7.6 HIGH Cacti: Stored SQL Injection via graph_name_regexp in Reports feature
CVE-2026-39894 2.9 LOW Cacti: RRDtool metric shift via LC_NUMERIC locale comma decimal formatting
CVE-2026-39900 Cacti: Reflected XSS via tab parameter in auth_profile.php JavaScript context
CVE-2026-39948 Cacti has SQL Injection via rfilter parameter in RLIKE clauses
CVE-2026-39899 Cacti: Path Traversal via filename parameter in package_import.php
CVE-2026-40079 Cacti: Command Injection via escape_command() no-op in RRDtool execution

IV. Related Vulnerabilities

Same product: cacti
Same vendor: Cacti
Same weakness: CWE-79

V. Comments for CVE-2026-39897

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