CVE-2026-10827
LowCVSS 3.5Exploitation Probability (EPSS)
Low risk1th percentile - higher than 1% of all known CVEs
Summary
The Spectra Legacy WordPress plugin before 2.20.0 does not validate or escape several block style attributes before using them to build the CSS it outputs on the front end, allowing users with the Contributor role and above to inject arbitrary CSS into the pages that render the affected block.
Risk Assessment
Injected CSS can force external resource loads, deface/redress the page, or exfiltrate data via CSS attribute selectors, potentially leading to defacement or data theft.
Recommendation
Update the Spectra Legacy plugin to version 2.20.0 or later, which includes style attribute validation.
Related vulnerabilities
- CVE-2026-106501Critical
Backstage is an open framework for building developer portals. Prior to versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder. An authenticated Backstage user who can read another user's Scaffolder task may receive internal execution data.
- CVE-2026-105812Critical
Improper control of code generation in the agent import functionality of Amazon Bedrock AgentCore Starter Toolkit before 0.3.14 might allow an authenticated same-account actor to execute arbitrary code when a user imports and runs or deploys a Bedrock Agent, via crafted configuration values incorporated into generated Python source without safe literal encoding.
- CVE-2026-79805Critical
An authenticated path traversal vulnerability exists in ClearPass Policy Manager. Successful exploitation could allow an attacker to read and modify certain files on the underlying operating system.
- CVE-2026-79801Critical
A missing integrity verification vulnerability in the client agent software of HPE Networking ClearPass Policy Manager could allow an unauthenticated remote attacker to introduce untrusted code. Successful exploitation could allow an attacker to execute arbitrary code on the affected client system.
- CVE-2026-79798Critical
SQL injection vulnerabilities in the web-based management interface of ClearPass Policy Manager could allow a low-privileged authenticated remote attacker to conduct SQL injection attacks against the ClearPass Policy Manager instance. Successful exploitation could allow an attacker to run arbitrary database commands.
- CVE-2026-79796Critical
Vulnerabilities have been identified in the affected interface of ClearPass Policy Manager that could potentially allow an unauthenticated remote attacker to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain unauthorized access to the affected system.
- CVE-2026-79794Critical
A SQL injection vulnerability in the web-based management interface of ClearPass Policy Manager could allow an authenticated remote attacker to conduct SQL injection attacks against the ClearPass Policy Manager instance. Successful exploitation could allow an attacker to run arbitrary database commands.
- CVE-2026-76754Critical
A vulnerability in an affected interface of ClearPass Policy Manager could allow an unauthenticated remote attacker to conduct SQL injection attacks against the ClearPass Policy Manager instance. Successful exploitation could allow an attacker to run arbitrary database commands.
- CVE-2026-76753Critical
A format string vulnerability in an affected service interface of HPE Networking ClearPass Policy Manager could allow an unauthenticated remote attacker to corrupt process memory. Successful exploitation could allow an attacker to execute arbitrary code.
- CVE-2026-76752Critical
Authentication bypass vulnerabilities exist in the web-based management and API interfaces of HPE Networking ClearPass Policy Manager. Successful exploitation could allow an unauthenticated remote attacker to circumvent existing authentication controls and gain administrative access to the affected system.
Original NVD description (English source)
The Spectra Legacy WordPress plugin before 2.20.0 does not validate or escape several block style attributes before using them to build the CSS it outputs on the front end, allowing users with the Contributor role and above to inject arbitrary CSS into the pages that render the affected block. The injected styles are served to anonymous visitors of those pages and can force external resource loads, deface/redress the page, or exfiltrate data via CSS attribute selectors. JavaScript execution is not possible at this role (the script-tag breakout is removed by KSES), so the impact is limited to CSS injection.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

