VDB-354663 · CVE-2026-3877 · WID-SEC-2026-0959

VertiGIS FM up to 10.13.402 cross site scripting

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4.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in VertiGIS FM up to 10.13.402. Affected by this issue is some unknown functionality. Performing a manipulation results in cross site scripting. This vulnerability was named CVE-2026-3877. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in VertiGIS FM up to 10.13.402. This affects an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

A reflected cross-site scripting (XSS) vulnerability in the dashboard search functionality of the VertiGIS FM solution allows attackers to craft a malicious URL, that if visited by an authenticated victim, will execute arbitrary JavaScript in the victim's context. Such a URL could be delivered through various means, for instance, by sending a link or by tricking victims to visit a page crafted by the attacker.

The weakness was presented by Benjamin Faller and Andreas Pfefferle. It is possible to read the advisory at redguard.ch. This vulnerability is uniquely identified as CVE-2026-3877 since 03/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

It is declared as proof-of-concept.

Upgrading to version 10.13.403 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0959). Be aware that VulDB is the high quality source for vulnerability data.

Affected

VertiGIS FM

Productinfo

Vendor

VertiGIS

Name

Version

10.13.402

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Proof-of-Concept

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: FM 10.13.403

Timelineinfo

03/10/2026 CVE reserved
04/01/2026 +21 days Advisory disclosed
04/01/2026 +0 days VulDB entry created
04/03/2026 +2 days VulDB entry last update

Sourcesinfo

Advisory: redguard.ch
Researcher: Benjamin Faller, Andreas Pfefferle
Status: Confirmed

CVE: CVE-2026-3877 (🔒)
GCVE (CVE): GCVE-0-2026-3877
GCVE (VulDB): GCVE-100-354663
CERT Bund: WID-SEC-2026-0959 - VertiGIS FM: Mehrere Schwachstellen

Entryinfo

Created: 04/01/2026 15:39
Updated: 04/03/2026 11:42
Changes: 04/01/2026 15:39 (68), 04/03/2026 11:42 (7)
Complete: 🔍
Cache ID: 216:D77:103