CVE-2026-111649 (CVSS 6.5)

Description

Rocboss paopao-ce through 0.6.0-alpha.3 contains an insecure direct object reference vulnerability in DownloadAttachment that allows authenticated users to access private media by supplying arbitrary content IDs. Attackers can enumerate sequential post_content ids via the /v1/attachment endpoint to obtain signed download URLs for other users' private, friend-only and following-only images, videos and attachments.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0039

Probability of exploitation

0.33%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-639 CWE-639

References

Other References

https://github.com/rocboss/paopao-ce https://github.com/rocboss/paopao-ce/blob/v0.6.0-alpha.3/internal/servants/web/priv.go#L208-L250 https://hackmd.io/@hieuPenguinnn/paopao-ce-attachment-download-cross-user-idor https://www.vulncheck.com/advisories/rocboss-paopao-ce-through-0.6.0-alpha.3-idor-via-downloadattachment-endpoint https://hackmd.io/@hieuPenguinnn/paopao-ce-attachment-download-cross-user-idor

Frequently Asked Questions

What is CVE-2026-111649? +

Rocboss paopao-ce through 0.6.0-alpha.3 contains an insecure direct object reference vulnerability in DownloadAttachment that allows authenticated users to access private media by supplying arbitrary content IDs. Attackers can enumerate sequential post_content ids via the /v1/attachment endpoint to obtain signed download URLs for other users' private, friend-only and following-only images, videos and attachments. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-111649? +

CVE-2026-111649 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0039, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-111649? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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