Portabilis i-Diario up to 1.5.0 Registro das atividades registros-de-conteudos-por-disciplina Registro de atividades/Conteúdos cross site scripting
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.0 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Portabilis i-Diario up to 1.5.0 and classified as problematic. The impacted element is an unknown function of the file /registros-de-conteudos-por-disciplina/ of the component Registro das atividades. This manipulation of the argument Registro de atividades/Conteúdos causes cross site scripting. This vulnerability is registered as CVE-2025-8787. Remote exploitation of the attack is possible. Furthermore, an exploit is available. To fix this issue, it is recommended to deploy a patch. The vendor confirms: "Audited values shown on that screen are now sanitized on output: only a minimal allowlist of basic formatting tags is kept and all attributes are stripped, so injected <script> or event-handler markup is removed and displayed as inert text."
Details
A vulnerability has been found in Portabilis i-Diario up to 1.5.0 and classified as problematic. Affected by this vulnerability is an unknown part of the file /registros-de-conteudos-por-disciplina/ of the component Registro das atividades. The manipulation of the argument Registro de atividades/Conteúdos with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity.
It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-8787. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.
It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor confirms: "Audited values shown on that screen are now sanitized on output: only a minimal allowlist of basic formatting tags is kept and all attributes are stripped, so injected <script> or event-handler markup is removed and displayed as inert text."
Applying the patch 821342cd8d952e8bd214cb16145da785a92f5681 is able to eliminate this problem. The bugfix is ready for download at github.com.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-24066). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Vendor
Name
Version
License
Website
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍
CVSSv3
VulDB Meta Base Score: 4.1VulDB Meta Temp Score: 4.0
VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.4
NVD Vector: 🔍
CNA Base Score: 3.5
CNA Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: 821342cd8d952e8bd214cb16145da785a92f5681
Timeline
08/09/2025 🔍08/09/2025 🔍
10/11/2026 🔍
Sources
Product: github.comAdvisory: github.com
Status: Confirmed
CVE: CVE-2025-8787 (🔍)
GCVE (CVE): GCVE-0-2025-8787
GCVE (VulDB): GCVE-100-319315
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 08/09/2025 07:16Updated: 10/11/2026 22:26
Changes: 08/09/2025 07:16 (57), 08/09/2025 08:29 (1), 08/10/2025 04:41 (30), 08/10/2025 06:29 (1), 09/03/2025 02:55 (12), 10/10/2026 18:04 (10), 10/11/2026 22:26 (2)
Complete: 🔍
Submitter: marceloQz
Committer: marceloQz
Cache ID: 216::103
Submit
Accepted
- Submit #625795: Portabilis i-diario 1.5.0 Cross Site Scripting (XSS) Stored (by marceloQz)
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
This stored XSS has been fixed in i-Diário.
The values submitted in the discipline content record endpoint (the activity register and content fields) were later rendered on the record's History screen. Audited values shown on that screen are now sanitized on output: only a minimal allowlist of basic formatting tags is kept and all attributes are stripped, so injected <script> or event-handler markup is removed and displayed as inert text.
The fix is available in the project's public repository, in commit https://github.com/portabilis/i-diario/commit/821342cd8d952e8bd214cb16145da785a92f5681
Recommended action: update to a current release of i-Diário.
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