CVE-2026-27505: SVXportal version 2.5 and prior contain a stored cross-site scripting vulnerability in the user registration w

Q: How do I fix CVE-2026-27505?

svxportal: upgrade to newer than 2.5. Exact commands for each OS are on this page.

Q: Is CVE-2026-27505 being exploited?

CVE-2026-27505 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-27505 affect?

CVE-2026-27505 affects svxportal. Severity is medium (CVSS 6.1). SVXportal version 2.5 and prior contain a stored cross-site scripting vulnerability in the user registration workflow (index.php submitting to admin/user_action.php). User-supplied fields such as Firstname, lastname, and email are stored in

Q: How urgent is CVE-2026-27505?

Priority 24/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2026-27505 is a medium-severity flaw (CVSS 6.1) affecting svxportal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SVXportal version 2.5 and prior contain a stored cross-site scripting vulnerability in the user registration workflow (index.php submitting to admin/user_action.php). User-supplied fields such as Firstname, lastname, and email are stored in the backend database without adequate output encoding and are later rendered in the administrator interface (admin/users.php), allowing an unauthenticated remote attacker to inject arbitrary JavaScript that ex

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-02-20
Last modified	2026-07-14

Publisher (CNA): VulnCheck · Vendor: radioinorr

Last updated 2026-07-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-20 17:25 UTCPublished CVE record published
2026-07-14 19:16 UTCUpdated Record last modified

radioinorr svxportal UPGRADE

Affected: <= 2.5

Fixed in: newer than 2.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy svxportal || rpm -q svxportal || svxportal --version

2. UPGRADE to newer than 2.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade svxportal

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade svxportal

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27505?

svxportal: upgrade to newer than 2.5. Exact commands for each OS are on this page.

Is CVE-2026-27505 being exploited?

CVE-2026-27505 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27505 affect?

CVE-2026-27505 affects svxportal. Severity is medium (CVSS 6.1). SVXportal version 2.5 and prior contain a stored cross-site scripting vulnerability in the user registration workflow (index.php submitting to admin/user_action.php). User-supplied fields such as Firstname, lastname, and email are stored in

How urgent is CVE-2026-27505?

Priority 24/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

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CVE-2026-27503 MEDIUM 6.1 UPGRADE SVXportal version 2.5 and prior contain a reflected cross-site scripting vulnerability in admin/log.php via th
CVE-2026-27502 MEDIUM 6.1 UPGRADE SVXportal version 2.5 and prior contain a reflected cross-site scripting vulnerability in log.php via the sear

References

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