How severe is CVE-2011-1135?

CVE-2011-1135 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2011-1135 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1135?

CVE-2011-1135 affects S9y Serendipity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-1135?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-1135 published?

CVE-2011-1135 was published on 2019-11-05 and last updated on 2026-06-16.

CVE-2011-1135

CVE-2011-1135 is a medium-severity vulnerability in S9y Serendipity with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: S9y Serendipity
Published: 2019-11-05
Last modified: 2026-06-16

Description

Cross-Site Scripting (XSS) in Xinha, as included in the Serendipity package before 1.5.5, allows remote attackers to execute arbitrary code in plugins/ExtendedFileManager/manager.php and plugins/ImageManager/manager.php.

Frequently asked questions

What is CVE-2011-1135?: Cross-Site Scripting (XSS) in Xinha, as included in the Serendipity package before 1.5.5, allows remote attackers to execute arbitrary code in plugins/ExtendedFileManager/manager.php and plugins/ImageManager/manager.php.
How severe is CVE-2011-1135?: CVE-2011-1135 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2011-1135 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1135?: CVE-2011-1135 affects S9y Serendipity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1135?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1135 published?: CVE-2011-1135 was published on 2019-11-05 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:s9y:serendipity:*:*:*:*:*:*:*:*

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