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CVE-2026-21273— ColdFusion | Improper Input Validation (CWE-20)

Quick assessment

Affected
Adobe ColdFusion 2025
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.

Adobe ColdFusion是美国Adobe公司的一个商业化的快速 Web 应用程序开发计算平台。 Adobe ColdFusion 2025 2025.0.11及之前版本和Adobe ColdFusion 2023 2023.0.22及之前版本存在输入验证错误漏洞，该漏洞源于输入验证不当，可能导致权限提升，低权限攻击者能够获得未授权读写访问。该漏洞利用需要用户交互，受害者需打开恶意文件。

CVSS 8.7 · High EPSS 0.86% · P57

Affected Version Matrix 4

VendorProduct Version RangeStatus
Adobe ColdFusion 2023 ≤ 2023.0.22 affected
2023.0.23 unaffected
Adobe ColdFusion 2025 ≤ 2025.0.11 affected
2025.0.12 unaffected
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I. Basic Information for CVE-2026-21273

Vulnerability Information
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Vulnerability Title
ColdFusion | Improper Input Validation (CWE-20)
Source: CVE Program / CVE List V5
Vulnerability Description
is affected by an Improper Input Validation vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to gain unauthorized read and write access. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe ColdFusion 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe ColdFusion是美国Adobe公司的一个商业化的快速 Web 应用程序开发计算平台。 Adobe ColdFusion 2025 2025.0.11及之前版本和Adobe ColdFusion 2023 2023.0.22及之前版本存在输入验证错误漏洞，该漏洞源于输入验证不当，可能导致权限提升，低权限攻击者能够获得未授权读写访问。该漏洞利用需要用户交互，受害者需打开恶意文件。
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
Adobe ColdFusion 2025 0 ~ 2025.0.11 -
Adobe ColdFusion 2023 0 ~ 2023.0.22 -

II. Public POCs for CVE-2026-21273

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III. Intelligence Information for CVE-2026-21273

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Vendor Advisories for CVE-2026-21273 (1)

Same Patch Batch · Adobe · 2026-08-11 · 52 CVEs total

CVE-2026-27302 10.0 CRITICAL Adobe Campaign Classic (ACC) | Incorrect Authorization (CWE-863)
CVE-2026-71398 10.0 CRITICAL Adobe Campaign Classic (ACC) | Incorrect Authorization (CWE-863)
CVE-2026-48362 10.0 CRITICAL ColdFusion | Improper Neutralization of Special Elements used in an OS Command ('OS Comman
CVE-2026-71384 9.6 CRITICAL ColdFusion | Incorrect Authorization (CWE-863)
CVE-2026-71362 9.1 CRITICAL Adobe Commerce | Incorrect Authorization (CWE-863)
CVE-2026-48381 9.0 CRITICAL Adobe Campaign Classic (ACC) | Improper Neutralization of Special Elements used in an SQL
CVE-2026-71386 8.8 HIGH ColdFusion | Cross-site Scripting (XSS) (CWE-79)
CVE-2026-71387 8.8 HIGH ColdFusion | Incorrect Authorization (CWE-863)
CVE-2026-48413 8.7 HIGH Adobe Commerce | Cross-site Scripting (Stored XSS) (CWE-79)
CVE-2026-48397 8.6 HIGH Lightroom Classic | Deserialization of Untrusted Data (CWE-502)
CVE-2026-48441 8.6 HIGH Lightroom Classic | Improper Limitation of a Pathname to a Restricted Directory ('Path Tra
CVE-2026-34635 8.4 HIGH ColdFusion | Use of Hard-coded Cryptographic Key (CWE-321)
CVE-2026-21279 8.2 HIGH ColdFusion | Improper Input Validation (CWE-20)
CVE-2026-48440 8.1 HIGH ColdFusion | Heap-based Buffer Overflow (CWE-122)
CVE-2026-25652 7.8 HIGH ColdFusion | Incorrect Authorization (CWE-863)
CVE-2026-48405 7.8 HIGH Lightroom Classic | Out-of-bounds Write (CWE-787)
CVE-2026-48407 7.8 HIGH Lightroom Classic | Out-of-bounds Write (CWE-787)
CVE-2026-48410 7.8 HIGH Lightroom Classic | Out-of-bounds Write (CWE-787)
CVE-2026-48404 7.8 HIGH Lightroom Classic | Out-of-bounds Write (CWE-787)
CVE-2026-47940 7.8 HIGH Lightroom Classic | Integer Overflow or Wraparound (CWE-190)

Showing top 20 of 52 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: ColdFusion 2025
Same vendor: Adobe
Same weakness: CWE-20

V. Comments for CVE-2026-21273

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