CVE-2026-27502Network attack vector

Reflected XSS via unescaped search attribute

Published Feb 20, 2026 · Updated Feb 20, 2026

Reflected XSS in log.php in SA2BLV SVXportal 2.5 and earlier allows remote attackers to execute JavaScript via a crafted search parameter. The page writes the search value directly into an HTML input value attribute without context-appropriate output encoding, so quotes can terminate the attribute and introduce script-capable markup. Exploitation requires a victim to visit the crafted URL and can expose session data or perform browser actions in that victim's security context.

CVSS severity5.1
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in log.php in SA2BLV SVXportal 2.5 and earlier allows remote attackers to execute JavaScript via a crafted search parameter. The page writes the search value directly into an HTML input value attribute without context-appropriate output encoding, so quotes can terminate the attribute and introduce script-capable markup. Exploitation requires a victim to visit the crafted URL and can expose session data or perform browser actions in that victim's security context.

The record

CVE
CVE-2026-27502
Published
Feb 20, 2026
Updated
Feb 20, 2026
Vendor
SA2BLV
Product
SVXportal
Classifications
CWE-79, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SA2BLV · SVXportalversion=0 <=2.5

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
6.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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