CVE-2023-28750Network attack vector

Reflected XSS via unescaped Errore parameter

Published Jun 22, 2023 · Updated Apr 28, 2026

Reflected XSS in Ignazio Scimone Albo Pretorio On Line 4.6 and earlier allows remote attackers to run scripts via a crafted request. The plugin returns the unsanitized and unescaped Errore request parameter in an HTML response, causing the victim's browser to execute injected script in the site's origin. Exploitation requires no account but does require a user, including a privileged administrator, to open an attacker-crafted link; the script then runs in that user's session.

CVSS severity7.1
High
EPSS probability0.38%
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 Ignazio Scimone Albo Pretorio On Line 4.6 and earlier allows remote attackers to run scripts via a crafted request. The plugin returns the unsanitized and unescaped Errore request parameter in an HTML response, causing the victim's browser to execute injected script in the site's origin. Exploitation requires no account but does require a user, including a privileged administrator, to open an attacker-crafted link; the script then runs in that user's session.

The record

CVE
CVE-2023-28750
Published
Jun 22, 2023
Updated
Apr 28, 2026
Vendor
Ignazio Scimone
Product
Albo Pretorio On Line
Classifications
CWE-79, CAPEC-591, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=n/a <=4.6 changes=[{"at":"4.6.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ignazio Scimone · Albo Pretorio On Lineversion=n/a <=4.6 changes=[{"at":"4.6.1","status":"unaffected"}]

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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')
CAPEC-591Reflected XSS
T1203Exploitation for Client Execution

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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