joomlaeventmanager.net Joomla Events Manager Extension 1.0.0-5.0.0 PDF Export pdfbutton cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k2.16

Summaryinfo

A vulnerability was found in joomlaeventmanager.net Joomla Events Manager Extension 1.0.0-5.0.0. It has been classified as problematic. This affects the function pdfbutton of the component PDF Export. The manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2026-77989. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in joomlaeventmanager.net Joomla Events Manager Extension 1.0.0-5.0.0. It has been rated as problematic. This issue affects the function pdfbutton of the component PDF Export. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

Joomla Extension - joomlaeventmanager.net - Reflected XSS via the PDF export link in Joomla Events Manager < 5.0.1 - buildCurrentPdfLink copies the current request query string into the PDF button URL, and pdfbutton() echoes it unescaped, leading to an reflected XSS vector.

It is possible to read the advisory at joomlaeventmanager.net. The identification of this vulnerability is CVE-2026-77989 since 08/21/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

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: 4.3

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

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/21/2026 CVE reserved
08/27/2026 +6 days Advisory disclosed
08/27/2026 +0 days VulDB entry created
08/27/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: joomlaeventmanager.net
Status: Confirmed

CVE: CVE-2026-77989 (🔒)
GCVE (CVE): GCVE-0-2026-77989
GCVE (VulDB): GCVE-100-396107

Entryinfo

Created: 08/27/2026 08:50
Changes: 08/27/2026 08:50 (66)
Complete: 🔍
Cache ID: 216::103

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